Arsenic sulfide, penta

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. 

Thiosulfuric acid is representative of a general class of acids, called thio acids or sulfo acids, in vhich one or more oxygen atoms of an oxygen add are replaced by sulfur atoms. For example, arsenic penta-sulfide dissolves in a sodium sulfide solution to form the thioarsenate ion, AsS -----, completely analogous to the arsenate ion, AsO ------- ... 

SODIUM BICHROMATE (10588-01-9) A strong oxidizer. Reacts violently with reducing agents, acids, acetic anhydride, hydrazine, combustible materials, organic substances, metal powders. Reacts with acrolein, antimony trisulfide, antimony tritelluride, arsenic penta-sulfide, 1,1-dichloro-l-nitroethane, 1,3-dichloropropene, diethylamine, fluorine, hydrazine, potassium iodide, sodium tetraborate, sodium tetraborate decahydrate, sodium borohydride, zirconium dusts, i -trioxane. Incompatible with ffj-bis(trichlormethyl)benzene, hydroxy-lamine. Aqueous solution is caustic incompatible with acids, alcohols, aldehydes, alkylene oxides, cresols, caprolactam solution, epichlorohydrin, organic anhydrides, glycols, maleic anhydride, phenols. Attacks aluminum, copper, brass, bronze, tin, zinc, especially in the presence of moisture. 

Arsenic pentoxide (AsjOj), arsenic penta-sulfide (AS2S5), arsenic pentaselenide (As2Sc5) and especially arsenates represent examples of compounds in the +5 oxidation state. 

---