Hazard Oxidizing agent, dangerous fire risk in contact with organic materials.
Risk R45
Safety
Poison by ingestion, intramuscular, and subcutaneous routes. Experimental reproductive effects. Questionable carcinogen with experimental tumorigenic data. Used in animal feed. Explosive reaction with ammonium hexacyanoferrate(II) at 220°C. Potentially explosive reaction with carbon. When heated to decomposition it emits toxic fumes of NOx. See also COBALT COMPOUNDS and NITRATES.
Hazard Codes: 
T,
N,
Xn,
Xi
Risk Statements: 45-23/24/25-34-51/53-43-40-36/38-52/53
R23/24/25:Toxic by inhalation, in contact with skin and if swallowed.
R34:Causes burns.
R36/38:Irritating to eyes and skin.
R40:Limited evidence of a carcinogenic effect.
R45:May cause cancer.
R51/53:Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
R52/53:Harmful to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
Safety Statements: 53-23-26-36/37/39-45-61-36/37-36
S23:Do not breathe vapour.
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S36:Wear suitable protective clothing.
S36/37:Wear suitable protective clothing and gloves.
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection.
S45:In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
S53:Avoid exposure - obtain special instructions before use.
S61:Avoid release to the environment. Refer to special instructions / safety data sheets.
