This section provides a listing of alternate names for this chemical, Title: Safety Data Sheet for Magnesium Sulfate (MgSO4) Solution (100 mM) (B1003) Author: New England Biolabs, Inc. 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. Sometimes it is an option to purify waste products into chemicals that are pure enough to be used again. Web13. Generally, the soil option is safer, because there is no plumbing you should worry about, but some chemicals shouldn't be released into the soil, either. 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! Decomposes at high temperatures to yield carbon oxides, water vapors, soot, VOCs, etc. The resulting solutions contain moderate concentrations of hydrogen ions and have pH's of less than 7.0. Mineral acids and bases should be neutralized to pH5.5 to 9 range before disposal, following approved procedures. Zinc Sulfateis a colorless, odorless, crystalline powder. It is used in making rayon, as a wood preservative, and as an analytical reagent. It is also used as a dietary supplement, and in herbicides, water treatment, fireproofing, deodorant, cosmetics and fertilizers. Reasons for Citation 5 They can, however, be converted to aluminium sulfate, which is safe to dispose of in soil, though it will cause a decrease in pH (it is used as a fertilizer for this purpose), and in diluted form can be poured down the drain, as at low concentrations it's used in the treatment of water. EXALGO. WebSaline solution. 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. Cyanides must never be poured down the drain before neutralization. In general, your designated place for pouring chemicals into the soil should be far from any gardens, horticulture or any other agricultural objects. It's not recommended to use zinc compounds obtained from technical sources as zinc supplements for soil or livestock, as it may contain traces of heavy metals, such as cadmium. It's best however, to avoid dumping large quantities of waste, as the reaction in exothermic and may splash or volatilize some of the waste, so it's best to perform the neutralization in small steps. These neutralizations generate heat, but less or far less than is generated by neutralization of inorganic acids, inorganic oxoacids, and carboxylic acid. in the table below are harmless and even useful in agriculture as fertilizers. ), Burns, releasing carbon oxides and water vapors; some will evaporate when heated, Toxic to the wildlife, suspected carcinogen, Not required; Careful and controlled pyrolysis, Pyrolysis gives nitrogen, water, chlorine and carbon/nitrogen oxides, Safe, nitrogen source for plants; Guanidine derivates occur in guano; Chlorides however are harmful for plants in large amounts, Pyrolysis gives nitrogen, water, chlorine and carbon/nitrogen oxides; may explode at high temperatures, Perchlorates are harmful for the environment, Pyrolysis gives nitrogen, water and carbon/nitrogen/sulfur oxides, Safe, nitrogen and sulfur source for plants; Guanidine derivates occur in guano, Gives off carbon oxides, water vapor and soot, Do not use heat, as it will lead to detonation, Treatment with hydrochloric acid; dilution of resulting products, followed by disposal. WebZinc Sulfate is a colorless, odorless, crystalline powder. Section 7: Handling and Sarcosine. Processing, use or contamination of this product may change the waste management options. It is used in making rayon, as a wood preservative, and as an analytical reagent. & indicates that no RQ is assigned to this generic or broad class, although the class is a CERCLA hazardous substance. Many methods described in literature involve slowly bubbling the organic compound with a carrier gas in the Fenton solution, as this increases oxidation and limits splashing. Filter off green precipitate. For quicker results, alkali bases can be neutralized with any acid, though for practical and economical purposes, acetic acid or citric acid are sufficient. State and local disposal regulations may differ from federal disposal regulations. Section 13 - Disposal Considerations Dispose of in a manner consistent with federal, state, and local regulations. SDS (Sodium Dodecyl Sulfate) (up to 1-25% concentration) Sodium carbonate/Sodium hydrogen carbonate. Chromium dioxide may be another feasible option, as it is found in cassette tapes and can be recycled with them. Copper salts are dangerous to the environment and should be reduced with iron to elemental copper, that can be reused, and the iron salts produced are less toxic. The availability of these disposal methods varies depending on where you live. National Oceanic and Atmospheric Administration. IF IN EYES: Rinse cautiously with water for several minutes. Water soluble. (Sigma-Aldrich SDS) Collect in aluminium hydroxide waste To overcome this, you can use a freshwater foot-bath before the chemical foot-bath to get rid of any organic material. Radioactive Wastes. Heavy metals, such as mercury, can often be neutralized with a mixture of zinc and sulfur powders, which yields mercury sulfide aka cinnabar. Web2. They can, however, be converted to aluminium sulfate, which is safe to dispose of in soil, though it will cause a decrease in pH (it is used as a fertilizer for this purpose), and in diluted form can be poured down the drain, as at low concentrations it's All are noncombustible. Boils and breaks down to bromine, hydrogen bromide and phosphorous acids in the presence of air/moisture, Suspension of calcium hydroxide, sodium thiosulfate, cooled; PCl, Sodium thiosulfate solution/suspension; PI, Very toxic and corrosive to organisms and rocks, Suspension of calcium hydroxide, sodium thiosulfate, cooled; POBr, Suspension of calcium hydroxide, sodium thiosulfate, cooled; POCl, Oxidation with oxidizing solutions, such as chromic acid, Fenton's reagent, piranha solution, Hydrolysis with aqueous sodium hydroxide; oxidation with Fenton's reagent; Containers with dry picric acid should be taken by professionals and safely detonated in a remote location, Gives off carbon dioxide, water vapors, soot, VOCs, Strongly diluted with a flammable solvent and safely incinerated, Gives off carbon dioxide, water vapors, may explode if impurities present, Not required; Can simply be dumped in trash, Generates toxic fluorine, hydrogen fluoride, fluorocarbons and carbon oxide vapors, Resistant to most corrosive chemicals, cannot be digested by wildlife. Inhalation of dust causes irritation of nose and throat. While this can sometimes be time consuming, it can often be more environmentally and economically friendly than discarding the waste in one manner or another is. The decomposition works best in oxygen-rich atmosphere. Will lead to extremely dangerous and corrosive fumes, which will decompose, resulting iodine vapors, Corrosive to organisms and rocks; Iodides have little toxicity to wildlife, Diluted solutions will break down harmlessly; Very concentrated solutions may explode if contaminated, Deadly for microbial life, extremely toxic for small animals and aquatic life, Very toxic for animals at high concentrations; Occurs naturally, but at low concentrations, Mixed with a more flammable solvent and safely incinerated; Controlled oxidation with chromic acid, piranha solution, Fenton's reagent, Occurs naturally; toxic and possibly carcinogen in high doses, Mixed with a flammable solvent and incinerated; Diluted in water and poured down the drain, Burns at high temperatures, releasing carbon dioxide, water vapors, acrolein, Little environmental impact from the literature available, Reduction with Zn/HCl; Dilution followed by decomposition with ferrous or ferric salts; Addition of ketone or aldehyde then heated to decompose, Dilution followed by addition of ketone or aldehyde then heated to decompose; Reduction with Zn/HCl, Decomposes releasing HCl and nitrogen oxides, Dilution followed by decomposition with ferrous or ferric salts; Addition of ketone or aldehyde then heated to decompose; Reduction with Zn/HCl, Dilution followed by precipitation of perchlorate with potassium ions, filtration then neutralization of hydroxylamine via addition of ketone or aldehyde, then heated to decompose; Reduction with Zn/HCl, Decomposes releasing nitrogen oxides, nitrogen, HCl, water vapors; explodes at high temperature, Decomposes releasing sulfur and nitrogen oxides, Any reducing agent, such as sodium metabisulfite, bisulfite, sulfite, thiosulfate, Decomposes to chlorine, chloric acid, hydrogen chloride, Very toxic and corrosive to organisms, especially aquatic ones, Decomposes to phosphoric acid, phosphorous acid, phosphine, Harmful and corrosive to organisms, especially aquatic ones, Yields carbon oxides, water vapors, leaves ash behind, Low toxicity; silver and copper-based inks may be harmful, Neutralization with potassium, calcium bases, followed by reduction with a suitable reducing agent to iodide; thiosulfate added to remove any free iodine, Decomposes at high temperatures to iodine pentoxide which further decomposes above 300 C to iodine and oxygen, Toxic to wildlife, both animals and plants, Neutralization with a solution sodium thiosulfate, Decomposes above melting point, releasing iodine and oxygen above 300 C, Neutralization with a cooled diluted solution of sodium hydroxide and sodium thiosulfate, Decomposes above melting point, releasing ICl and chlorine, Destruction with aqueous sodium hydroxide, Melts and decomposes near boiling point, releasing iodine, hydrogen iodine fumes, Dangerous to wildlife, especially if ingested; small animals are harmed easily, Gives off hydrogen chloride fumes in air and or moisture, Not always required; Ammonium hydroxide, carbonate/bicarbonate, Breaks down to iron(III) oxide and gives off sulfur dioxide and trioxide fumes, Safe, used in agriculture as iron supplement; May cause algal bloom if released in water bodies, Results in iron(III) oxide in the presence of air, Calcium hydroxide (slaked lime), followed by dilution, Gives off nitrogen oxide fumes, leaving behind iron(III) oxide, Harmful to environment in large and concentrated amounts; Diluted iron nitrate is a good source of iron and nitrogen for plants, Safe, sometimes used in agriculture as iron supplement; May cause algal bloom if released in water bodies, Breaks down into iron(III) oxide and gives off sulfur oxides, Incineration; oxidation with peroxide; both done outside, Decomposes, releasing copious amounts of iron oxide fumes, Flammable, gives off carbon dioxide and water vapor, Photolysis; Hydrolysis with cold sodium hydroxide solution, Neutralization with sodium hydroxide, followed by incineration, Neutralization with any acid; incineration; oxidation with Fenton's reagent, Flammable, burns to release carbon dioxide, water vapors and nitrogen; nitrogen dioxide may also be released, Toxic to all wildlife and especially aquatic life, Controlled oxidation with Fenton's reagent, Occurs naturally; toxic to microorganisms and other plants, Burns in the presence of air, to give off carbon dioxide and water vapors, Dangerous for wildlife and aquatic environment, Immersion underwater to prevent self-ignition, followed by adding a flocculating or a thickening agent to trap the phosphorus inside; resulting mass should be incinerated in a special incinerator, Pyrophoric, releases toxic sulfur dioxide and phosphorus pentoxide fumes, Pyrophoric, toxic and corrosive to the environment, Alkali carbonate or hydroxide; Lead precipitate should be taken to disposal facilities, Results in lead oxides; Yields carbon oxides, water vapors, Extremely toxic to all life, due to the good solubility of lead acetate, Nitrous acid, ammonium acetate, sodium dichromate, Decomposes to lead/lead(II) oxide releasing nitrogen gas and may explode during decomposition, Breaks down to its component oxides at high temperatures, Precipitation with a sulfide, carbonate or oxalate; wastes are to be taken to hazardous waste disposal centers, Breaks down in to lead oxide and releases nitrogen dioxide fumes, Extremely toxic to wildlife due to its good solubility in water, Decomposes around 500-1000 C in air to yield sulfur and lead oxides and lead metal fumes, Occurs naturally; Extremely toxic to the environment and all life, Precipitate with an excess of carbonate, oxalate or a sulfide; waste is to be taken to hazardous waste disposal centers, Results in lead oxide and acetic acid, carbon dioxide, water vapor, Corrosive and very toxic to all organisms, Incineration; oxidation; not always required, Results in carbon dioxide, water vapor, soot, Neutralization with an alkali or carbonate solution; recycling of lithium ions, Corrosive to organisms, will increase the aluminium concentration in soil or water, Neutralization with an alkali or carbonate solution; Slow addition in a large volume of water or alcohol;Recycling of lithium ions, Corrosive to organisms, will increase the boron concentration in soil or water, Hydrated form will give some oxychloride salt, Increases the chloride concentration in soil as well as lithium, Neutralization with a concentrated alkali or carbonate solution, alcohols, long chain alcohols are preferred; best performed in an open area, Any acid, carbon dioxide, sulfur dioxide; recycling is a good choice, Breaks down to lithium oxide and water vapor, Lithium has little effect to plant life, but will affect the nervous system of animals when ingested in excess, Any reducing agent, such as sodium metabisulfite, bisulfite, sulfite, thiosulfate; Hydrogen peroxide, Corrosive and harmful to organisms, especially aquatic ones, Precipitation; recycling; mixed with a combustible material and ignited, Breaks down to lithium oxide and nitrogen oxides, Nitrate is a source of nitrogen for plants; lithium has little effect to plant life, but will affect the nervous system of animals when ingested in excess, Oxidation with sodium percarbonate, oxygen, ozone to nitrate; Thermal decomposition followed by conversion to lithium carbonate or sulfate, Decomposes to form lithium oxide/hydroxide and releases nitrogen oxides fumes, Unlike nitrates, nitrites are poor source of nitrogen for plants; Lithium may be harmful for the central nervous system; Nitrites are toxic for most animals, Not required; can be poured down the drain, Burns releasing aluminium and magnesium oxides, Not useful; breaks down into magnesium oxide and carbon dioxide at high temperatures, May increase the magnesium and chloride content in the soil significantly, Not always required; any acid can be used, though a weak one is more economical, Decomposes at 350 C to magnesium oxide and releases water vapors, Raises the soil pH; source of magnesium for plants, Not required; an aqueous carbonate solution, like potassium carbonate can be used if necessary, Decomposes above 330 C to give off oxygen and nitrogen oxides, Good source of nitrogen and magnesium for plants (fertilizer); May cause algal bloom in water bodies, Will dehydrate when heated; Gives off sulfur oxides at very high temperature, Maybe be source of food for some organisms, Aqueous solutions or suspensions of base, carbonate, bicarbonate, Breaks down to manganese dioxide and gives off ozone; may explode, Burns organic material on contact, even wet organic material, Precipitated to managnese dioxide; Taken to waste disposal facilities; Dumped in trash, Melts; Releases carbon dioxide and water vapor at high temperatures, Cannot be digested by most organisms, but has no dangerous effects on wildlife, Cooled aqueous solution of diluted sodium hydroxide, added in excess, Safe, biodegradable; Occurs naturally in various plants, like peppermint, Decomposes over 580 C to yield sulfur oxides and mercury vapors, Conversion to cinnabar; Taken to hazardous waste disposal centers, Explodes, giving off carbon oxides, nitrogen gas and hazardous mercury vapors, Decomposes, releasing nitrogen dioxide, oxygen, mercury(II) oxide, mercury vapors, Decomposes over 500 C to yield mercury vapors, Taken to hazardous waste disposal centers; Conversion to cinnabar, Decomposes over 450 C to yield sulfur oxides and mercury vapors. 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. However, chromic acid will (violently) oxidize alcohols to their respective aldehydes or ketones, which cannot be oxidized further by the acid alone, which limits it's use in neutralizing many compounds. Before neutralizing them, always dilute the acid first, to limit splashing or boiling the acid. The resulting cyanates will slowly hydrolyze in basic environment to ammonium carbonates, while excess bleach/oxidizer will further convert them to nitrogen and carbon dioxide. Before discarding waste, think about what all it contains, and if there is some way that it could be used. WebPick up and arrange disposal without creating dust. products are harmful, Recycling; Traces of bronze waste can be completely dissolved with nitric acid, followed by neutralization of leftover acid, recovering copper and tin via electrowinning, Old bronze may contain arsenic, lead or nickel which is harmful to the environment, Will burn to release carbon dioxide and water vapors, Will burn to release carbon dioxide, soot, VOCs, PAHs and water vapors, Bicarbonates, carbonates, bases, oxides; neutralized solution can be safely poured down the drain, Flammable (high concentrations), no dangerous combustion products, though the smoke will have a rancid smell, Safe, biodegradable; avoid dumping large amounts, dangerous to microfauna and water bodies, Very controlled incineration, done outside or in a kiln; Oxidation with Fenton's reagent; Hot aqueous solution containing sodium hydroxide and sodium tetraborate, Ignites, gives off carbon oxides, nitrogen oxides, water vapors, soot, Displays toxicity to aquatic life; RDX can be degraded by the fungus Phanaerocheate chrysosporium; binders may be harmful for organisms, Precipitation to cadmium sulfide, taken to hazardous waste disposal centers, Decomposes at high temperatures to cadmium oxide, Extremely toxic and dangerous to wildlife; Highly carcinogenic, Decomposes at high temperatures to cadmium oxide and nitrogen dioxide, Decomposes and sublimes at high temperatures, Decomposes at high temperatures to basic sulfate then cadmium oxide releasing sulfur oxides, Very toxic and dangerous to wildlife; Highly carcinogenic, Sodium nitrite, nitrous acid; recycling of caesium, Breaks down to caesium metal and gives off nitrogen gas, Recycling; Taken to waste disposal centers, Dangerous to organisms in very high concentrations; Caesium ions have similar toxicity to those of sodium and potassium. 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 Many of these compounds catalyze organic reactions. WebUse a licensed professional waste disposal service to dispose of this product. WebZINC sulfate heptahydrate | H14O11SZn | CID 62640 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more. 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. 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. However there are many chemicals, such as heavy metal compounds or organic solvents, that require special disposal techniques. Zinc Sulfate -> 10-20% However, because only small amounts of compound gets neutralized at a time, this process takes a while. The resulting solutions contain moderate concentrations of hydrogen ions and have pH's of less than 7.0. Lists of various chemical compounds that can be safely released in the ground or down the drain can be found here, here or here. Chemicals marked as "Oh yes!" Nickel and perchlorates are toxic to environment, Not required; can be dumped in trash or taken to waste disposal centers, Yes (if pure); No (if it contains cobalt), Toxic to the environment if it contains cobalt, Generates carbon oxides, nitrogen fumes; May corrode metal container, if done in one, May cause uncontrolled algae growth in water bodies, Decomposes when burned; May explode if heated at high temperatures, Safe, good fertilizer; May cause uncontrolled algae growth in water bodies, Water, iron(III) oxide, manganese dioxide, Decomposes when heated to high temperatures, releasing water vapor, Yes, though not recommended in large quantities, Irritant and corrosive to large organisms, kills small organisms, Not required; should be taken to disposal facilities, Not useful; Turns into oxides of lower states at high temperatures, Not required; and oxidizing mixture may be used to oxidize it completely if desired, Decomposes above 250 C to release carbon dioxide, water vapors and soot, There is little data available for its environmental effects, doesn't appear to be toxic, Lethal to small animals and toxic to larger ones in small amounts; Not suspected to be bioaccumulative, Uncomposted wood is harmful for environment, especially sawdust, Melts at 70 C and gives off harmful cadmium fumes at high temperatures, While bismuth and tin don't present great hazard to environment, lead and cadmium do, Oxidation with Fenton's reagent; Incineration, best with an afterburner, Burns in air, to release combustion gasses, soot and VOCs, Toxic to wildlife and hazardous to water bodies, Cannot be digested by most lifeforms, otherwise little to no toxicity to most organisms; It is however known to be fatal to dogs and some birds, Recycling; Traces of zamak waste can be dissolved with nitric acid, followed by neutralization of leftover acid, recovering copper and zinc via electrowinning, Not useful; melts above 380 C and may fume, Low quality zamak may contain lead or cadmium which are harmful to the environment, Unless contaminated with hazardous compounds, it poses little danger to environment, Breaks down to zinc oxide, carbon oxides, water, acetone, acetic anhydride (?) A radioactive waste that is water soluble or readily dispersible in water and not prohibited from sewer disposal based including trade names and synonyms. Small quantities. 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. WebWastes with limited sink/sewer disposal. Conversion to mercury(II) sulfide; Taken to hazardous waste disposal centers; Decomposes over 165 C to yield a residue known as "Pharaoh's snake", as well as sulfur oxides and mercury vapors, Will give off carbon dioxide and water vapor, as well as some formaldehyde if not enough oxygen, Decomposes giving off carbon oxides, sulfur oxides, nitrogen, water, soot, VOCs, May be harmful to microorganisms, fauna and water bodies, Reduction with a reducing agent, such as sodium sulfite; Test for peroxides after neutralization; If no peroxides present, incineration or other proper disposal method, Dangerous to wildlife in high concentrations; Occurs naturally in low concentrations, Decomposes giving off carbon dioxide, nitrogen, water vapors, VOCs, PAHs, Low toxicity to environment in small amounts, Classified as hazardous to environment and ground water, Decomposes giving off carbon dioxide, sulfur oxides, nitrogen, water, hydrogen chloride vapors, VOCs, PAHs and other harmful compounds, May be harmful to microbial life, fauna and water bodies, Will burn at high temperatures, releasing carbon oxides, water vapors and soot, Oils float on water bodies and inhibit the cellular breathing of many organisms, Mixed with a flammable solvent and burned, Decomposes, releases combustion gasses, VOCs, Dangerous to wildlife due to nickel and chromium content, Decomposes giving off carbon oxides, nitrogen, water, soot, VOCs, Oxidation with an oxidizing solution, such as Fenton's reagent, piranha solution or chromic acid, Decomposes, releasing carbon oxides, nitrogen oxides, water vapors, PAHs, soot, Possibly harmful for the environment; little data available on its environmental effects, Generates carbon oxides, water vapor, sulfur oxides, soot and nitrogen, Harmful to wildlife; Nitrification inhibitor, slows the nitrification of ammonia, Mixed with a more flammable solvent, followed by incineration outside or in an incinerator; Oxidation with Fenton's reagent under controlled conditions, Gives off toxic fumes or carbon dioxide, nitrogen oxides, VOCs, Long-chained alcohols, diluted with an alkane, Pyrophoric, both alloy and reaction products corrosive to wildlife, Incineration, best done in an incinerator with afterburner; Oxidation with Fenton's reagent, Generates carbon dioxide, water vapors, carbon monoxide, soot, VOCs, Poured down the drain; oxidized with a strong oxidizing solution, neutralized then poured down the drain, May be harmful to microorganisms, fish in water bodies, Pyrolysis, followed by recycling of Nd slag, Gives off carbon oxides, leaving neodymium oxides and hydroxides behind, Presents toxicity to wildlife due to the oxalate group, Sublimes and decomposes, releasing carbon oxides, water vapors, soot, pyridine derivatives, Low toxicity, essential nutrient for life, Nickel and chromium are harmful for wildlife, Nickel is very toxic for animals; hydrazine is very toxic to environment, Strong dilution in water, followed by CAREFUL addition of a diluted base; precipitation of nickel, Nickel is harmful for animals; hydrazine is very toxic to environment; perchlorates are toxic for animals and plants, Precipitation with a soluble hydroxide; precipitate should be taken to disposal centers, Gives off nitrogen oxide fumes, leaving behind nickel oxide slag, Reduction of perchlorate to chloride; Precipitation with a soluble hydroxide; precipitate should be taken to disposal centers, Gives off chlorine oxide fumes, leaving behind nickel oxide slag; may decompose violently if organic contaminant present, Gives off sulfur oxide fumes, leaving behind nickel oxide slag, Generates carbon oxides, water vapors, soot, VOCs and toxic nicotine vapors, Deadly to small animals, toxic and addictive to large organisms; absorbs through skin; biodegradable, Any base, hydroxide, carbonate, bicarbonate, Boils off, while also giving off nitrogen dioxide fumes, Corrosive to organisms and rocks; its salts are excellent nitrogen source for plants, Oxidizes to nitrogen dioxide in air, which is highly toxic and corrosive; creates acid rain, Generates carbon oxides, water vapor, soot and nitrogen, Controlled incineration; Hydrolysis with aqueous alkali hydroxide, Breaks down to release combustion gasses and self-ignites at 160 C, No; however it can be converted to fertilizer by adding aqueous ammonia, Breaks down in the presence of water to give nitric acid, which, after neutralization becomes source of nitrogen for plants, Burns giving off carbon oxides, water vapors and nitrogen gas, Bubbling through an alkali solution, peroxide solution, Reacts with air moisture to generate nitric acid and contributes to the acid rain; extremely toxic to animals and plants, Photolysis; Hydrolysis with hot water; Reduction with sodium thiosulfate, Detonation, giving off corrosive iodine vapors, The iodine vapors it gives off during decomposition are dangerous to organisms in short term, Safe, nitrogen source for plants, used as fertilizer; Guanidine derivates occur in guano, Slow addition to water, followed by neutralization with dil. 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