Agent Name

Cobalt(II) nitrate hexahydrate

CAS Number

10026-22-9

Formula

Co.2H-N-O3.6H2-O

Major Category

Metals

Synonyms

Cobalt dinitrate hexahydrate; Cobalt nitrate hexahydrate; Cobalt(2+) nitrate hexahydrate; Cobaltous nitrate hexahydrate; Nitric acid, cobalt(2+) salt, hexahydrate; [ChemIDplus] UN1477

Category

Metals, Inorganic Compounds

Description

Red deliquescent solid; [Merck Index] Red crystalline powder; Odorless; [Alfa Aesar MSDS]

Sources/Uses

Used to make cobalt pigments, invisible inks, catalysts, and vitamin B12 supplements, and for decorating stoneware and porcelain; [Merck Index]

Comments

Causes somnolence, diarrhea, and weight loss in oral lethal-dose studies of rats; [RTECS] A fire hazard on contact with combustible materials; A skin, eye, and respiratory tract irritant; May cause skin sensitization and asthma; May have effects on the heart, thyroid, and bone marrow (cardiomyopathy, goiter, and polycythemia); Possibly toxic to reproduction and teratogenic, based on animal studies; [ICSC] An oxidizing agent that may intensify fire; An irritant; May cause skin and respiratory sensitization; [Alfa Aesar MSDS] See "Cobalt." See "NITRATES and NITRITES."

Exposure Assessment
BEI

Cobalt in urine = 15 ug/L; sample at end of shift at end of workweek;

TLV (ACGIH)

0.02 mg/m3, as Co

Explanatory Notes

The Guide in the Emergency Response Guidebook is for "Nitrates, inorganic, n.o.s."

Adverse Effects
Skin Sensitizer

Yes

Asthma

Yes

IARC Carcinogen

Possible Carcinogen

Links to Other NLM Databases
Toxicity Information

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Chemical Information

Search ChemIDplus

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