Potassium metal, incompatibilities with

BORIC ACID (10043-35-3) BH3O3 Aqueous boric acid is a weak acid incompatible with alkali carbonates hydroxides strong reducing agents, including metal hydrides, nitrides, sulfides, and alkali metals. Violent reaction with potassium metal. Contact with acetic anhydride forms a heat-sensitive explosive. On small fires, use water fog. 

FERROUS CHLORIDE TETRA-HYDRATE (7758-94-3) FeCl Contact with ethylene oxide may initiate polymerization. Reacts violently with reducing agents, including hydrides, nitrides, and sulfides acrolein, alcohols, chlorine trifluoride, ethers, fluorine, hydrazine, hydrazinium perchlorate, hydrogen peroxide, finely divided aluminum or magnesium, peroxyfuroic acid, sodium acetylide. Sensitizes most organic azides which are unstable shock and heat-sensitive explosives. Forms explosive materials with l,3-di(5-tetrazoyl)triazene, potassium,sodium. Incompatible with glycidol, isopropyl chlorocarbonate, nitrosyl perchlorate, sodium borohydride. Aqueous solution attacks metals. 

MOLYBDENUM TRIOXIDE or MOLYBDENUM(VI) OXIDE or MOLYBDIC ANHYDRIDE or MOLYBDIC TRIOXIDE (1313-27-5) M0O3 Violent reaction with strong oxidizers interhalogens, chlorine trifluoride, bromine pentafluoride interhalogens molten magnesium hot lithium, potassium, sodium. Incompatible with common metals, alkali metals, lithium, magnesium, potassium, sodium. Forms a series of polymeric compounds with acids and bases. Thermal decomposition releases toxic metallic fumes. On small fires, use dry chemical powder (such as Purple-K-Powder), Halon , or COj extinguishers. 

AMMONIUM HYDROGEN SULFATE or AMMONIUM HYDROGEN SULPHATE (7783-20-2) Aqueous solution is a strong acid. Reacts with caustics, forming ammonia. Violent reaction with potassium chlorate. Hot material reacts with nitrates, nitrites, chlorates. Attacks metals. Incompatible with sulfuric acid, aliphatic amines, alkanolamines, amides, organic anhydrides, isocyanates, vinyl acetate, alkylene oxides, epichlorohydrin. Mixture with sodium hypochlorite forms unstable explosive nitrogen trichloride. 

BROM (German) (7726-95-6) A powerful oxidizer. Violent reaction with reducing agents. Can cause fire and explosions in contact with organic or other readily oxidizable materials. Contact with water or steam forms hydrobromic acid and oxygen. Contact with aqueous ammonia, acetaldehyde, acetylene, acrylonitrile, hydrogen may cause violent reactions. Anhydrous material reacts violently with aluminum, titanium, mercury, or potassium wet material reacts with other metals. Incompatible with many materials, including alcohols. 

Note Polar solvent soluble in alcohols, ether, benzene, and most oils usually stabilized with methanol to prevent phosgene formation flammable and highly toxic by inhalation, ingestion, or skin absorption narcotic carcinogenic incompatible with caustics, active metals, aluminum powder, potassium, sodium, magnesium. Synonyms trichloromethane, methane trichloride. 

Explosive reaction with sodium -I-methanol or sodium methoxide + methanol. Mixtures with sodium or potassium are impact-sensitive explosives. Reacts violently with acetone + alkah (e.g., sodium hydroxide, potassium hydroxide, or calcium hydroxide), Al, disilane, Li, Mg, methanol + alkah, nitrogen tetroxide, perchloric acid + phosphorus pentoxide, potassium-tert-butoxide, sodium methylate, NaK. Incompatible with dinitrogen tetraoxide, fluorine, metals, or trhsopropylphosphine. Nonflammable. When heated to decomposition it emits toxic fumes of CT. 

NIOSH REL (Chromium(VI)) TWA 0.025 mg(Cr(VI))/mh CL 0.05/15M SAFETY PROFILE Confirmed human carcinogen. Poison by subcutaneous route. Mutation data reported. A powerful oxidizer. A powerful irritant of skin, eyes, and mucous membranes. Can cause a dermatitis, bronchoasthma, chrome holes, damage to the eyes. Dangerously reactive. Incompatible with acetic acid, acetic anhydride, tetrahydronaphthalene, acetone, alcohols, alkali metals, ammonia, arsenic, bromine penta fluoride, butyric acid, n,n-dimethylformamide, hydrogen sulfide, peroxyformic acid, phosphorus, potassium hexacyanoferrate, pyridine, selenium. 

A powerful oxidizer. Explosive reaction with acetaldehyde, acetic acid + heat, acetic anhydride + heat, benzaldehyde, benzene, benzylthylaniUne, butyraldehyde, 1,3-dimethylhexahydropyrimidone, diethyl ether, ethylacetate, isopropylacetate, methyl dioxane, pelargonic acid, pentyl acetate, phosphoms + heat, propionaldehyde, and other organic materials or solvents. Forms a friction- and heat-sensitive explosive mixture with potassium hexacyanoferrate. Ignites on contact with alcohols, acetic anhydride + tetrahydronaphthalene, acetone, butanol, chromium(II) sulfide, cyclohexanol, dimethyl formamide, ethanol, ethylene glycol, methanol, 2-propanol, pyridine. Violent reaction with acetic anhydride + 3-methylphenol (above 75°C), acetylene, bromine pentafluoride, glycerol, hexamethylphosphoramide, peroxyformic acid, selenium, sodium amide. Incandescent reaction with alkali metals (e.g., sodium, potassium), ammonia, arsenic, butyric acid (above 100°C), chlorine trifluoride, hydrogen sulfide + heat, sodium + heat, and sulfur. Incompatible with N,N-dimethylformamide. 

To fight fire, use alcohol foam, CO2, dr) chemical. Violent polymerization occurs on contact with ammonia, alkali hydroxides, amines, metallic potassium, acids, covalent halides (e.g., aluminum chloride, iron(III) chloride, tin(IV) chloride, aluminum oxide, iron oxide, rust). Explosive reaction with glycerol at 200°. Rapid compression of the vapor with air causes explosions. Incompatible with bases, alcohols, air, m-nitroaniline, trimethyl amine, copper, iron chlorides, iron oxides, magnesium perchlorate, mercaptans, potassium, tin chlorides, contaminants, alkane thiols, bromoethane. When heated to... 

Reacts with water or steam to produce heat. Violent reaction with bases (e.g., sodium hydroxide, potassium hydroxide, calcium hydroxide), alkali metals (e.g., sodium, potassium), amines (e.g., dimethylamine, triethylamine), lithium, pyridine. To fight fire, use alcohol foam. Incompatible with cations. When heated to decomposition (above 150°C) it emits acrid smoke and irritating fumes. See also ANHYDRIDES. 

SAFETY PROFILE A poison. Flammable by chemical reaction an oxidizer. Explosive reaction with hydrogen peroxide, chlorine + ethylene. Reacts violently with molten potassium, molten sodium, S, (H2S + BaO + air). Forms explosive mixtures with nonmetals [e.g., phosphorus (impact-sensitive), sulfur (friction-sensitive)]. Incompatible with alkali metals, reducing materials. Dangerous when heated to decomposition it emits highly toxic fumes of Hg. See also MERCURY COMPOUNDS, INORGANIC. 

Rb2C2, Na, Na2C2, SnO, diaminolithiumacetylene carbide. Will react with water or steam to produce toxic and corrosive fumes. Incompatible with halogens or interhalogens, lithium nitrate, metal acetyUdes, metal oxides, metals, polymeric tubing, potassium chlorate, sodium hydride. 

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