(USCG, 1999). The primary hazard is the threat posed to the environment. Since it's magnetic, a magnet can be used to scoop all steel leftovers, Some steel alloys contain nickel which will leak in the environment which is harmful to the environment, Any acid; Not required; Can be safely dumped in trash, Breaks down to strontium oxide and carbon dioxide at high temperatures; reverts as it cools, Strontium has little effect on environment, Not required; Any soluble carbonate or sulfate, Not required; May be converted to strontium sulfate or just dumped in soil, Breaks down to strontium oxide, oxygen and nitrogen dioxide at high temperatures, Will burn grass on contact; strontium has little effect on environment, Decomposes to strontium oxide at very high temperatures, Low environmental impact, occurs naturally, Careful and controlled destruction using an oxidizing solution; bubbling chlorine in a dil. Zinc Sulfate -> 10-20% f Eliminate all ignition sources. State and local disposal regulations may differ from federal disposal regulations. As such, this method is generally considered a last resort in disposal, and it's mostly used for cleaning rather than disposal. WebExcerpt from ERG Guide 171 [Substances (Low to Moderate Hazard)]: IMMEDIATE PRECAUTIONARY MEASURE: Isolate spill or leak area in all directions for at least 50 5 Waste containing cyanide, either from gold refining or from organic extractions of alkaloids from cyanide containing plants, must be neutralized with bleach or hydrogen peroxide, to turn them into less harmful cyanates. Nitrogen or nitrogen oxides. (Zinc sulfate) Transport hazard class(es) Class: 9 Miscellaneous dangerous substances and articles Packing group:III Environmental hazard: Transport in bulk: Name: Marine Pollutant at high temperatures, Unless contaminated, good source of zinc for plants, though a bit too acidic; may lower soil pH, Breaks down to zinc oxide and carbon oxide at high temperatures, Unless contaminated, good source of zinc for plants, though a bit too alkaline, Gives off hydrochloric acid fumes if moist, Chlorides are dangerous for chloride-sensitive plants in large quantities, Sodium, potassium or ammonium carbonate/bicarbonate to precipitate zinc carbonate which is inert; recovery of alkali nitrates, dilution of zinc carbonate and poured down the drain, Decomposes to zinc oxide, releasing nitrogen dioxide and oxigen, May pose a threat to aquatic life in large quantities; may cause unwanted algal bloom; source of zinc and nitrogen to plants, Not required; Weak acids can be used to dissolve zinc oxide stains to soluble zinc compounds, Turns the oxide yellow at high temperatures; process is reversible, May pose a threat to aquatic life in large quantities, Precipitation with a soluble hydroxide; Reduction of perchlorate to chloride, Gives off chlorine oxide fumes, leaving behind zinc oxide slag; may decompose violently if organic contaminant present, Source of zinc and phosphorus for wildlife, Not always required; Zinc metal can be recovered through electrowinning and the diluted sulfuric acid neutralized with a base, Unless contaminated, is a good source of zinc for plants, Dissolving it in water, followed by precipitation of zirconium dioxide by adding an alkali, Potentially harmful; Nitrates may serve as nourishment for plants; Zirconium displays moderate toxicity, Decomposes releasing HCl and water vapors. Slow decomposition in a large volume of water or alcohol, Decomposes to release acetic acid, hydrogen, Harmful, will increase the boron concentration in soil or water, Melts; Decomposes releasing carbon dioxide and water vapor at high temperatures, Safe, nourishment for organisms, though harmful for bacteria, Recycling; Traces of stainless steel waste don't require chemical neutralization as SS is sufficiently inert that it can't do any significant damage to the environment. WebPick up and arrange disposal without creating dust. Zinc sulfate is also obtained as a hexahydrate, ZnSO4.6H2O, and as a heptahydrate ZnSO4.7H2O. Office of Response and Restoration, Most chemicals used by the amateur chemist come from every day use and do not require special treatment before being discarded in the usual way. Bleach can be used to neutralize the compound, May pose a threat to wildlife in large amounts due to its sodium content, Decomposes on heating to release carbon monoxide, May pose a threat to wildlife in large amounts since it's a sodium salt; Occurs naturally as mineral, Slow addition to diluted solution of phosphoric acid, A reducing agent like sodium thiosulfate or sulfite; Generally not required though, Decomposes to release water vapors and oxygen, leaving behind sodium borate, Hydrogen peroxide in harmful for organisms; High levels of sodium and boron are toxic for plants, Any acid; Iron(III) oxide or manganese dioxide can also be added for complete neutralization; Generally not required though, Decomposes to release water vapors and oxygen, leaving behind sodium carbonate, Hydrogen peroxide in harmful for organisms; High levels of sodium are toxic for plants, Burns in a mixture with flammable materials, Decomposes to manganese dioxide and sodium oxide/hydroxide at high temperatures, Hydrolyzes in water to sulfuric acid; addition of a base to neutralize the acid, Oxidizer, harmful; excess sodium harmful for plants, Only in places without plant or animal life (construction sites, quarries, etc. Likewise, it's forbidden to burn certain materials in open air, such as aromatic compounds or organosulfur compounds and for those, special incinerators are a must. The concentration is determined by volumetric titration and refers to 20C. Unless the concrete is damaged, broken or dissolved in acid, the heavy metal ions will not be released. including trade names and synonyms. Currently there are nine products Corrosive and dangerous on direct contact with wildlife; Reaction with water will lead to phosphoric acid, highly corrosive and dangerous. acidified solution, Extremely toxic to all organisms; metal salts are sensitive explosives, Avoid releasing in environment, toxic, carcinogen, Careful addition to bleach; Dissolved in a flammable solvent and incinerated, Degradation releases free cyanide, which is extremely toxic to organisms, Turns into caramel if gently heated and soot at high temperatures, Aqueous solution of NaOH, slow addition; poured down the drain after neutralization, Above 205 C decomposes to water, sulfur trioxide, sulfur dioxide and nitrogen, Not required, small amounts can be poured down the drain or trash, Decomposes releasing carbon and sulfur oxides, nitrogen gas and soot, Toxic to microbial life and harmful to aquatic bodies, Neutralization with a base; Destruction with an oxidizing agent, may not be required for small amounts, Any base, carbonate, bicarbonate, best as aqueous solution/suspension, Any base, bleach (solution); hydrogen sulfide, ammonia (gaseous), Deadly and extremely corrosive to all life; contact with moist air produces sulfuric acid mist; contributes to acid rain, May lead to sulfur dioxides and fluorine at very high temperatures, Only if it's followed by large amounts of water; Though best to neutralize it first, Corrosive and deadly to wildlife; Lowers soil pH; Corrosive to rocks, While ammonium nitrate is a good nitrogen source for plants, the aluminium and other impurities present are generally harmful for wildlife, Safe, low toxicity; occurs naturally in fruits in large concentrations, Strong dilution in lots of water an poured down the drain; Oxidation with Fenton's reagent, chromic acid, Incineration in a kiln; Oxidation with Fenton's reagent, Burns and decomposes to release combustion gases and soot, Toxic to the environment, though limited data is available, Effects unknown, may stimulate plant growth, No required, simply dump in trash or recycle, Breaks down at high temperatures to release carbon oxides, Breaks down at high temperatures to release sulfur oxides, Incineration, oxidation with Fenton's reagent, strongly diluted and poured down the drain, Poses moderate toxicity to wildlife, water bodies, Incineration, oxidation with Fenton's reagent; hydrolysis, followed by dilution, then poured down the drain, Will burn to release carbon dioxide, water vapors and HCl fumes, Gives off water vapors and ammonia, leaving copper oxide behind, Yes, unless there's copper or brass plumbing, Copper ions pose toxicity to most organisms, Detonation, releasing ammonia, sulfur dioxide copper oxide, Addition of diluted mineral acid; Addition of aq. Bleach (best bet); hydrogen peroxide; oxygen; ozone; Extremely toxic for all organisms, used to kill pests, Neutralize it first, good source of phosphorus, unless contaminated, Deadly to small animals; excess in water bodies may cause algal bloom, Suspension of calcium hydroxide, sodium thiosulfate, cooled; PBr, Breaks down to bromine, hydrogen bromide, phosphorus tribromide and phosphorous acids in the presence of air/moisture, Corrosive and deadly to all wildlife; Lowers soil pH; Corrosive to rocks, soil, Suspension of calcium hydroxide, cooled; PCl, Boils and breaks down to chlorine, hydrogen chloride and phosphorous acids in the presence of air/moisture, Will volatilize at very high temperatures, No, reaction with water is highly exothermic and may generate acidic steam. Chemicals marked as "Oh yes!" They usually do not react as either oxidizing agents or reducing agents but such behavior is not impossible. In general, your designated place for pouring chemicals into the soil should be far from any gardens, horticulture or any other agricultural objects. An alcohol burner can be used to burn these liquids. To dispose of these chemicals, place the containers in a box lined with a plastic bag, tape the top of The Saline Sulfate Etch for etching zinc is about three times more active than a straight copper sulfate solution without salt; it also produces a very crisp etch. Efflorescent in air. Evacuate personnel and secure control entrance to the area. Neutralization with any acid, carbon dioxide; recycling; Not useful; highly corrosive when hot to glass, most common metals, Dangerous to wildlife in short term (highly corrosive); Caesium ions have similar toxicity to those of sodium and potassium, Not required; Can be dumped almost anywhere, Sublimes; Oxidation Generates carbon oxides, water vapors, soot, Toxic to small animals, addictive to large organisms; biodegradable; occurs naturally, Decomposes to calcium carbonate and acetone at high temperature, which burns in an oxygen-rich atmosphere, Not useful; breaks down into calcium carbonate and carbon dioxide as the solution is heated, Lots of water in an open space; low chain alcohols, Dangerous to wildlife in short term (reacts with water); may also release phosphine gas if carbide sample is impure, Not useful; breaks down into calcium oxide and carbon dioxide at high temperatures, Not useful; May release some HCl fumes if wet, Chloride ions may be harmful to certain plants, Neutralization with a reducing agent, such as ascorbic acid sodium metabisulfite, sulfite, bisulfite at acidic pH, Cr(VI) ions are powerful carcinogens and very toxic to organisms, Not useful; Sublimes at very high temperatures, Slowly hydrolyzes to urea, which is a good plant fertilizer, Will result in calcium carbonate and give off carbon dioxide and water vapors at high temperatures, Neutralization with a concentrated alkali or carbonate solution, alcohols, long chain alcohols are preferred; water vapor can also be used; best performed in an open area, Decomposes to release hydrogen at very high temperatures, Will dehydrate to calcium oxide at high temperatures, Sodium bisulfite, sodium metabisulfite, sodium sulfite, Disproportionates into chlorate and chloride; will release chlorine and chlorine dioxide fumes, Not required; soluble carbonate or sulfate solution can be used if necessary, Good source of nitrogen for plants (fertilizer); May cause algal bloom in water bodies, Plenty of cold water, carbon dioxide, sodium/potassium bicarbonate, Mixing it with a combustible material, like sugar and incineration, Will decompose at high temperatures to release oxygen, Not required; can be poured down the drain or dumped in trash, Will decompose at high temperatures to release various ketones, carbon oxides, water vapors, Large quantities are harmful to water bodies and small animals, Not required; soluble carbonate solution can be used if gypsum is not desired as waste product, Becomes anhydrous at high temperatures (drierite); decomposes to calcium oxide at very high temperatures, Anhydrous or hemihydrate form may burn grass on contact, Not required at low concentrations; high concentrations may require an oxidizer, like bleach, Generates irritant smoke, carbon dioxide, soot and water vapor, Harmful for mammals at high concentrations, otherwise relative safe, biodegradable; Occurs naturally, Not possible (gaseous form), safe to pour (water solution), Incineration, followed by scrubbing of sulfur dioxide (optional), Burns in presence of oxygen, releasing carbon dioxide and sulfur dioxide, Oxidation with ozone; adsorbtion on activated charcoal; absorbtion in a solution of cuprous chloride in hydrochloric acid or cuprous chloride in ammonia, Not useful; burns in the presence of oxygen and hydrogen, Sodium hydroxide excess; oxidation with Fenton's reagent, Results in phosgene in the presence of air, Extremely toxic to wildlife, sinks at the bottom of water bodies, Toxic to aquatic life in large quantities, Burns in air; decomposes to release carbon oxides, water vapors, Yes, but avoid water bodies; bury it in ground instead, Safe, biodegradable; avoid dumping large amounts, as it poses choking hazard to most animals, Unnecessary, simply dump in trash; recycle, Unless it adsorbed dangerous volatile compounds or heavy metals, it can be used as a fertilizer, Oxidation with hydrogen peroxide to sulfate, followed by precipitation or reduction of copper ions to metal or hydroxide/oxide, Gives off water vapors when heated and sulfur oxides at very high temperatures, Little is known about its environmental effect; it is used as a fungicide and molluscicide, Reducing with sodium sulfite, metabisulfite, bisulfite, Breaks down to perchloric acid and chlorine oxides, Strong oxidizing, toxic and corrosive to all wildlife and everything organic, Reduction with metabisulfite, sulfite or bisulfite, Neutralization with excess sodium hydroxide to sodium glycolate products, Decomposes high temperatures, releasing toxic fumes, Toxic and corrosive to most wildlife, used as herbicide, Neutralization with a cooled solution of sodium or potassium hydroxide, Evaporates and burns at high temperatures, releasing extremely toxic and lachrymator fumes, Reduction with a reducing agent, such as ascorbic acid, metabisulfite, sulfur dioxide, Gives off hydrogen chloride gases and leaves gold powder behind, Dangerous to wildlife; Best to try to recycle it, Neutralization with Fenton's reagent; biodegradation with the bacterium Rhodococcus phenolicus, Gives off hydrogen chloride fumes during burning/pyrolysis, as well as various POCs and soot, Toxic to wildlife; chlorobenzene can persist in soil for several months, in air for about 3.5 days, and in water for less than one day, Reducing with alkali hydroxide or magnesium, followed by incineration, Gives off hydrogen chloride fumes during burning/pyrolysis, Boils to form vapor, should not be attempted indoors, May cause ozone depletion, dangerous to aquatic life, Release outside in atmosphere; Photolysis; Destruction with aqueous sodium hydroxide, oxidation with, May cause ozone depletion, dangerous to land and aquatic life, Reduction to platinum metal, followed by recovery of the precious metal, Breaks down to platinum(II) chloride, then platinum metal, Decomposes to perchloric acid, hydrogen chloride, chlorine dioxide, oxygen, Reducing with a reducing agent, such as sodium metabisulfite, sulfite, bisulfite, ascorbic acid, Precipitation with a base; can be dumped in the trash, taken to a waste disposal facility or recycled, Melts and decomposes at high temperatures, At temperatures ~1000 C it will become inert against the action of most reagents, Low reactivity, low danger for environment, Precipitation with a soluble hydroxide, followed by calcination to chromium(III) oxide, Due to its instability, it poses low danger to environment, Dissolving it in water and reducing with a reducing agent, such as sodium metabisulfite, sulfite, bisulfite, ascorbic acid at acidic pH, A supersaturated solution of a reducing agent, such as sodium sulfite, metabisulfite or thiosulfate at acidic pH, Not useful, boils off and fumes in contact with air moisture, Corrosive and deadly to all wildlife; Lowers soil pH; Corrosive to rocks, soil; Carcinogenic, Any base, carbonate, bicarbonate, alkaline-earth oxide, In wet environment it acts as fungi growth environment, Dumped in trash, incineration, taken to waste disposal centers, Gives off carbon dioxide and water vapors, leaving ash behind, May give off hydrogen chloride fumes in the presence of water, Toxic to wildlife; classified as "Substance of very high concern" in the EU, Any soluble hydroxide, carbonate; Taken to disposal centers, Gives off sulfur oxides fumes and sulfuric acid vapors, leaving behind cobalt oxide residue, Cobalt is necessary for vitamin B12 production, Not always required; can be dumped in trash, Recover copper via reduction; Discard in trash, Decomposes to copper oxide and releases various gasses, High levels of copper are dangerous to wildlife, Reduction with a iron or zinc to metallic copper, Gives off HCl fumes and leaves behind CuO slag, May hydrolyze in the presence of water and air to give off hydrogen chloride fumes, Oxidizes to copper(II) chloride in the presence of air, which is toxic and corrosive in water, Dissolving it in an acid, followed by reduction to metallic copper, Reduction with iron or zinc to metallic copper, which is recycled, Gives off carbon oxides, water, acetic acid and acetone vapors, Unknown effects in the environment; presence of copper ions however is generally considered harmful, Pyrolysis, incineration, oxidation with Fenton's reagent, Gives off carbon oxides and water vapors, as well as soot and VOCs, Not required; can be neutralized with an acid and reduced to metallic copper, Will give off carbon dioxide fumes and leave CuO residues, Copper ions are considered harmful to the environment, Precipitate as carbonate or reduce to copper metal using aluminium, iron or zinc, Loses water and hydrogen chloride, turns brown, Yes, but far from any agricultural plants, Copper ions are considered harmful to most wildlife, Any alkali or ammonium hydroxide, carbonate, Gives off nitrogen oxide and nitric acid fumes, leaving copper oxides/hydroxides slag, Copper ions may be harmful to wildlife; the nitrate group is a nitrogen source for plants, May decompose to copper oxide and phosphorus oxides at high temperatures, or elemental phosphorus in the presence of a reducing agent, Due to low solubility, it has lower toxicity than other copper compounds, Reduction with aluminium, iron or zinc to metallic copper, Loses water when heated, releases sulfur trioxide at high temperatures, leaving behind CuO, Releases carbon oxides and water vapors, as well as soot, Incineration outside; oxidation with an oxidizing solution, Flammable, burns in the presence of oxygen to release carbon dioxide and nitrogen gas, Not required; Any base, carbonate, bicarbonate, alkaline-earth oxide can be used if desired, Oxidation with Fenton's reagent or piranha solution, Considered to be harmful, but little is known about its toxicity, Dilution with a flammable solvent and incineration; oxidation with Fenton's reagent, Flammable, burns in the presence of oxygen to release carbon oxides, water vapors, soot and VOCs, Dilution with a flammable solvent and incineration, Low toxicity to organisms, but may be harmful to wildlife, Ignites at high temperatures and generates carbon oxides, water vapors, carbon monoxide, soot, VOCs, Incineration; Oxidation with Fenton's reagent, Ignites in air, gives off carbon dioxide and water vapors, soot, Dissolved in acid, followed by recovery of copper and zinc, Decomposes to release carbon oxides, water vapors, Toxic to small animals, otherwise relative safe, Burned outside or in an incinerator; hydrolysis in water, Careful dissolving in cold water/crushed ice, followed by neutralization with base; Reduction with metabisulfite, sulfite or bisulfite, Neutralization and dehalogenation with excess sodium hydroxide; Reduction with metallic powders to acetic acid, Destruction with aqueous sodium hydroxide, iron can also be used; Oxidation with, Boils to form vapor; pyrolysis at high temperatures yielding chlorine, hydrochloric acid and carbon monoxide, Extremely flammable, burns to release carbon dioxide, nitrogen gas and lots of heat, Yields carbon oxides, water vapor at high temperatures, Toxic to organisms, dangerous to aquatic and soil life, Incineration (no peroxides); Adding excess ferrous sulfate, sodium bisulfite or metabisulfite to neutralize the peroxides, followed by incineration; If the bottle has peroxides on the cap, do not open it, instead safely detonate it in a remote or special area, Extremely flammable, burns to release carbon dioxide and water vapors, Neutralization with base, bacterial degradation, decarboxylation, taken to waste disposal centers, Decomposes, releases combustion gasses, HF, methylene fluoride, Displays moderate toxicity to most organisms, Incineration (no peroxides); Acid-catalyzed hydrolysis with sulfuric acid; If peroxides are present, addition of excess ferrous sulfate, sodium bisulfite or metabisulfite to neutralize the peroxides, followed by incineration; If the bottle has peroxides on the cap, do not open it, instead safely detonate it in a remote or special area, Incineration; can be released in open air, Addition in large amounts of water or crushed ice, followed by addition of aq. Although small amounts can be diluted with large amounts of water and poured down the drain, 1,4-dioxane does not undergo significant biodegradation and most will end up in the environment. WebZinc Sulfate, Reagent Grade, Created by Global Safety Management, Inc. -Tel: 1-813-435-5161 - www.gsmsds.com Environmentally Hazardous Substance,solid, n.o.s. The soluble salts of halogen acids and oxoacids (except perchloric and chloric acids) can be safely poured down the drain. Remove contact lenses if present and easy to do continue rinsing. Burning in air yields carbon oxides, water vapor, nitrogen; Pyrolysis yields, Results in carbon dioxide and water vapor, Little information about its environmental impact, Incineration, done outside; Oxidation with Fenton's reagent; Hot aqueous solution containing sodium hydroxide and sodium tetraborate, Displays moderate toxicity to aquatic life; can be degraded by some microorganisms, Gives off carbon dioxide and water vapors, leaving holmium(III) oxide behind, Gives off toxic fumes; may lead to detonation if temperature is too high, Diluted in lots of water, followed by slow addition of a solution of calcium hypochlorite, Decomposes, gives off toxic fumes; may lead to detonation if temperature is too high, Will lead to detonation for concentrated solutions, Any base, carbonate, bicarbonate; sodium thiosulfate can also be used, Boils off the acid, resulting in extremely toxic and corrosive fumes; will lead to decomposition to elemental bromine, Any alkali or alkaline-earth carbonate, bicarbonate, DON'T! This page was last modified on 8 November 2022, at 18:53. Immediate steps should be taken to limit its spread to the environment. Since the biggest hazard comes from the volatile and soluble heavy metal compounds, it's best to convert them into insoluble compounds, which are less toxic. WebSaline solution. If you live in a suburban house, you have both. Oxidizing mixtures, such as aqua regia, piranha solution or the nitrating mixture must also never be poured down the drain, as they're much more dangerous than simple acids, and can wreak havoc on your plumbing. However, this merely is a method to prevent the heavy metals from being released in the environment and is not a permanent way of disposal. Copper and Zinc have specific discharge limits It is a good idea to take these to a proper waste disposal facility. Corrosion Irritation: Dermal: 10196-18-6 Skin - Rabbit Result : Severe skin irritation - 24 h Ocular: 10196-18-6 Cobalt salts may be carcinogenic and should be taken to a proper waste disposal facility. A good, though resource-intensive way to destroy halogenated and aromatic compounds is with Fenton's reagent, which breaks them down to simpler non-toxic compounds. The information relates only to the Small quantities. NaOH; Oxidation with Fenton's reagent, Burns and decomposes to release combustion gasses and soot, may explode, Extremely toxic to the environment, especially for animals, Careful and controlled destruction using an oxidizing solution, Burns and decomposes to release combustion gasses and soot, Dissolved in a more flammable solvent and incinerated. Sarcosine. WebPackage lots. Avoid breathing dust. WebDispose of it by rinsing with water, dissolving in excess dilute sulfuric acid and washing the resulting zinc sulfate solution down the sink. (Sigma-Aldrich SDS) Collect in aluminium hydroxide waste Dissolve the barium salt in the minimum volume of water. Traceability NIST SRM. Halogenated compounds like chloroform can be neutralized with a strong base, although this neutralization should not be done without safety precautions. Place in a separate labeled container for recycling or disposal. Safe detonation; Residual perchlorates can be destroyed by adding metallic iron under UV light, in the absence of air. Will lead to extremely dangerous and corrosive fumes, which will decompose, resulting bromine vapors, Corrosive to organisms and rocks; Bromides have little effect to wildlife, Any base, carbonate, bicarbonate; for gaseous form, ammonia can be used, though will result in a dense ammonium chloride mist, Corrosive for rocks, toxic for all wildlife, Absorbtion in water, base, followed by oxidation with hydrogen peroxide, bleach, sodium thiosulfate to less harmful compounds, continued by oxidation to carbon dioxide and nitrogen gas, Burns if ignited, but excess oxygen is required for complete burning, Calcium hydroxide, carbonate, bicarbonate; for gaseous form, excess ammonia can be used, though will result in a dense ammonium fluoride mist; further treatment with calcium hydroxide, carbonate will convert it to the more safe CaF, Corrosive for all life, inorganic materials, toxic for all wildlife, Any base, carbonate, bicarbonate; for gaseous form, ammonia can be used, though will result in a dense mist; sodium thiosulfate can also be used, DON'T! Nickel-containing compounds, especially organonickel compounds, are carcinogens, and are also dangerous to many other forms of life. Hocking, p. 216, http://www.drugfuture.com/chemdata/cuprous-sulfite.html, http://www.inchem.org/documents/sids/sids/115775.pdf, http://pubs.acs.org/doi/abs/10.1021/es7029703?journalCode=esthag, Safe disposal/handling of lead in a domestic setting, http://www.sciencemadness.org/smwiki/index.php?title=Proper_disposal_of_chemicals&oldid=14787, GNU Free Documentation License 1.3 or later, Oxidation with Fenton's reagent; Concentrated solution of sodium hydroxide, Safe detonation in remote area; Strong dilution in organic solvent followed by safe incineration; Hydrolysis with cold sodium hydroxide solution, Toxic to organisms; nitrate source for plants, Oxidation with an oxidizing solution, such as chromic acid, piranha solution, Fenton's reagent, Incineration (no peroxides); Oxidation with Fenton's reagent; Chlorination in water with chlorine or hypochlorous acid; If peroxides are present, addition of excess ferrous sulfate, sodium bisulfite or metabisulfite to neutralize the peroxides, followed by incineration; If the bottle has peroxides on the cap, do not open it, instead safely detonate it in a remote or special area, Incineration produces carbon dioxide and water vapor. Non-hydrated cement is hazardous to environment, animals and plants; hydrated solid is generally non-toxic; Production of cement is extremely harmful to environment, Pyrolysis, followed by taking the resulting slag to disposal facilities, Gives off carbon oxides and water vapors, leaving potassium antimony oxide slag behind, Above 292 C decomposes to potassium carbonate and above 891 C will yield potassium oxide and carbon dioxide, which is quickly reabsorbed as it cools, Excess may increase the concentration of potassium in the dumping area, Hydrolysis; neutralization with hydrogen peroxide, Breaks down to its constituent oxides, both dry and as solution, Dangerous to organisms due to its strong oxidizing properties; high amounts of bismuth are toxic, Decomposes to high temperatures releasing water vapors and sulfur trioxide, Decreases the soil pH, high levels of sodium are toxic for plants, Bleach or hydrogen peroxide can be used if desired, Decomposes to release sulfur dioxide and water vapors, High levels of sulfur dioxide are toxic for organisms, Decomposes, releasing combustion gasses, carbon oxides, water vapors, Safe, low toxicity; occurs during wine fermentation, Decomposes to potassium bromide and oxygen, May give off bromine vapors in the presence of water at high temperatures, Bromide ions pose little toxicity to wildlife in small amounts, No, very high temperatures decompose it to potassium oxide and carbon dioxide, which is quickly reabsorbed as it cools, Excess may increase the soil level of potassium in the dumping area, Reduction with metabisulfite, sulfite or bisulfite; a mixture of sulfuric acid and ferric ammonium sulfate can also be used, Melts and disproportionates to potassium perchlorate and potassium chloride, Small amounts can be dumped, as household bleach already contains a small percentage of chlorates, especially if it's old; Do not dump large quantities, Toxic to plants, was used as a weedkiller in the past, Yes, unless the soil is chloride sensitive, Presence of chlorides may have a harmful effect to some plants, Decomposes above 290 C, releasing oxygen, Cr(VI) is a potent carcinogen and very toxic to organisms, Decomposes above 1000 C, releasing oxygen, Oxidation with hydrogen peroxide, bleach, sodium thiosulfate to less harmful compounds, continued by oxidation to carbon dioxide and nitrogen gas, Melts and may oxidize in oxygen-rich atmosphere, Breaks down to iron(III) oxide and potassium hydroxide, best in the presence of moisture, Not required for small amounts, dumped in trash, Breaks down to iron and potassium nitrides/oxides, releasing cyanide, carbon monoxide, Low toxicity to organisms, though tends to break down under UV light, Neutralize first; neutralized is a good source of potassium for plants, Disproportionates to potassium chlorate and potassium chloride, giving off chlorine, Very toxic to organisms, especially aquatic ones, Decomposes, releasing oxygen, and iodine at high enough temperatures, Potassium iodate may be harmful to organisms, May release iodine vapors in the presence of water, Any reducing agents, such as oxalic acid, hydrogen peroxide, Breaks down to manganese oxide and alkali, Deadly to small organisms, dangerous to organisms in short term, Gives off nitrogen oxides at very high temperatures; burns in presence of organic compounds, releasing carbon oxides, nitrogen and leaving behind alkaline slag, Excellent fertilizer, though may lead to uncontrolled algae growth if dumped in water bodies, Oxidation with sodium percarbonate, oxygen, ozone to nitrate; Thermal decomposition followed by conversion to potassium carbonate or sulfate, Decomposes to form potassium oxide/hydroxide and releases nitrogen oxides fumes, Unlike nitrates, nitrites are poor source of nitrogen for plants; Nitrites are toxic for most animals due to the formation of nitrosamines, Reduction with metallic iron under UV light in the absence of air, Oxidizes flammable materials, burning them, Potassium periodate may be harmful to organisms, Potassium/sodium sulfite/metabisulfite/thiosulfate, ascorbic acid at acidic pH, Detonates, releasing potassium chromate, chromium(III) oxide fumes, Alkaline solution, sodium carbonate in water, Dangerous to the environment in short term, Not always required; can be dumped in trash or poured down the drain, Releases carbon oxides, soot and leaves behind potassium carbonate, Not always required; can be disposed in anyway, Releases combustion gasses and leaves behind sodium and potassium carbonate, Will decompose at high temperatures to release various hydrocarbons, carbon oxides, water vapors, Large quantities may be harmful to water bodies and small animals, Releases sulfur oxides at very high temperatures, Oxidation of aqueous potassium sulfite to sulfate reduces the amount of dissolved oxygen from water bodies, Dissolution in large amounts of water; poured down the drain, Decomposes to release carbon oxides, leaving behind basic potash, Safe, biodegradable; avoid dumping large amounts, kills microbial lifeform, Incineration, first mix it with a more flammable solvent, Not required, though it can be mixed with a flammable solvent and burned, Generates carbon oxides and water vapor, as well as other toxic pyrolysis compounds, May give off carbon oxides and nitrogen gasses at high temperatures, as well as cyanide, Contact with strong acids may release hydrogen cyanide, Not required; dump it in trash; mix it with concrete, Yes (powder or fine grains only, with plenty of water), Dilution in water followed by addition of NaOH solution, Breaks down to combustion gasses and soot, Incineration in a special incinerator; Oxidation with Fenton's reagent, Gives off carbon oxides, water vapors, soot, amines and nitrogen, Gives off carbon dioxide, water vapors and other side products, Safe, can be used as nourishment by organisms; Important role in Krebs cycle, Decomposes, releasing carbon oxides, water vapors, soot, pyridine derivatives, Low toxicity, though harmful for microorganisms, Dissolved in acid, followed by recovery of nickel and aluminium, Displays moderate toxicity to aquatic life; RDX can be degraded by the fungus Phanaerocheate chrysosporium, Unknown effects, doesn't appear to be harmful, Recycling; Wastes should be taken to hazardous metal disposal centers, While bismuth and tin don't present great hazard to environment, lead does, Breaks down to carbon oxides and water vapors, Recycling; Taken to waste disposal centers; Dumped in trash, Decomposes and ignites, releasing large amounts of black smoke, soot, VOCs, Natural rubber has low toxicity and is biodegradable; Synthetic and vulcanized rubber do not easily break down in the environment and are harmful for nature, Acidified sodium nitrite, nitrous acid; recycling of rubidium, Dangerous to organisms in very high concentrations; Rubidium ions have similar toxicity to those of sodium and potassium, Dangerous to wildlife in short term (highly corrosive); Rubidium ions have similar toxicity to those of sodium and potassium, Decomposes to rubidium nitrite above ~300 C, Low toxicity to wildlife, occurs naturally, Breaks down to phenol; at higher temperatures gives off carbon oxides, water vapors, soot and VOCs, Low toxicity to environment, occurs naturally, Breaks down to copper(I) oxide, gives off water vapors and ammonia, Copper ions and ammonia are toxic to most animals, especially small ones; ammonia can be a source of nitrogen for plants, Incineration, if no peroxides present; If peroxides are present, neutralize them with a reducing agent such as ferrous sulfate, sodium bisulfite or metabisulfite in excess, then incinerate; If the bottle has peroxides on the cap, do not open it, instead safely detonate it in a remote or special area, Surface oxidation at high temperatures in oxygen; decomposes at its melting point, At high temperatures results in melting; Can be used to indurate crystalline silica, Finely divided silica is dangerous for fauna, Photolysis; Reduction with a more reactive metal or a reducing agent like ascorbic acid; Recycling of silver, Breaks down to metallic silver, water and carbon dioxide at high temperatures, Toxic to wildlife; silver microparticles are harmful if ingested, Detonates, releasing silver particles and nitrogen gas, Breaks down to metallic silver and bromine at high temperatures, Photolysis; Reduction with a reducing agent like ascorbic acid or formaldehyde; Recycling of silver, Breaks down to metallic silver, oxygen and carbon dioxide above 120 C, Toxic to wildlife in short term; silver microparticles are harmful if ingested, Breaks down to metallic silver and chlorine at high temperatures, Reduction with a reducing agent like ascorbic acid or formaldehyde; Recycling of silver, Photolysis; Reduction with potassium thiocyanate or hydrochloric acid; Recycling of silver if possible, Explodes, releasing oxygen, nitrogen, carbon oxides and silver powder, Melts and breaks down to metallic silver and iodine at high temperatures, Breaks down to metallic silver, oxygen and nitrogen dioxide at high temperatures, Breaks down to metallic silver, oxygen and nitrogen oxides at high temperatures, Reduction with a more reactive metal or a reducing agent like ascorbic acid; Recycling of silver, Breaks down to metallic silver, silver chloride, oxygen, chlorine at high temperatures, Breaks down to metallic silver, oxygen and/or sulfur dioxide/trioxide at high temperatures, Not useful, already byproduct of high-temperature reactions, Slag is harmful for environment, especially if heavy metals are present, Somewhat good as a fertilizer, though expensive; Acts as a slow-release nitrogen source for plants, Decomposes and burns at high temperatures, releasing lots of soot, carbon dioxide and water vapors, High levels of sodium are toxic for plants; anionic surfactants are harmful for environment, Results in sodium carbonate and acetone at high temperatures, then carbon dioxide and water vapors, High levels of sodium are toxic for plants, Gives off carbon dioxide, water vapors and soot, Neutralization with an alkali or carbonate solution; adding the compound in small bits in large volumes of water and alcohol, Cooled alcoholic solution with small amounts of a weak acid; addition of amide in small amounts, Extremely harmful to environment in short term, Breaks down to sodium metal and gives off nitrogen gas, Too much sodium is harmful to plants; Reaction with certain compounds may release traces of benzene; otherwise safe, occurs naturally, Not required; Bleach or hydrogen peroxide can be used if desired, Neutralization with an alkali or carbonate solution; Slow addition in a large volume of water or alcohol, Melts and disproportionates to sodium perchlorate and sodium chloride, Small amounts can be dumped, as household bleach already contains a small percentage of chlorates, especially if it's old; Do not dump large quantities though, Small amounts can be dumped; Do not dump large quantities though, Neutralization of cyanide; Slow decomposition in a large volume of water or alcohol, Cyanide is toxic to organisms, will increase the boron concentration in soil or water, Dilution in water, followed by bleach or hydrogen peroxide, Breaks down to sodium sulfate, sodium sulfite, sodium thiosulfate, sulfur dioxide, Mixed with a flammable solvent and incinerated; Poured down the drain, Gives off carbon oxides, water vapors, sulfur oxides, Slow addition to a large volume of water, best with small amounts of a carboxylic acid, such as acetic or citric acid, Toxic and very corrosive to most organisms; Raises pH in water bodies, Diluted organic solutions will reduce it to its constituent oxides, Not recommended due to its sodium content, Dangerous to organisms due to its strong oxidizing properties, Decomposes to sodium oxalate, then carbonate, releasing carbon monoxide and water vapors, High levels of sodium are toxic to plants, Breaks down at high temperatures releasing aluminium fluoride, HF fumes, Relative safe to environment, harmful for insects and small animals; occurs naturally, Breaks down to sodium polyphosphates and sodium oxide, giving off phosphorus oxide fumes at high temperatures, Corrosive to organisms, harmful to wildlife, Dangerous to wildlife in short term; toxic to plants due to sodium ions, Disproportionates to sodium chlorate and sodium chloride, giving off chlorine, Very toxic to organisms, especially aquatic ones; High levels of sodium are toxic for plants, Toxic to most fauna; High levels of sodium are toxic for plants, Dissolution in a large volume of water slowly, best with small amounts of a carboxylic acid, such as acetic acid, Addition in large amounts of water, followed by addition of aq. 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