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1308-04-9

Name COBALT(III) OXIDE BLACK
CAS 1308-04-9
EINECS(EC#) 215-157-2
Molecular Formula Co2O3
MDL Number MFCD00036266
Molecular Weight 165.86
MOL File 1308-04-9.mol
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Chemical Properties

Definition Sometimes incorrectly called cobalt peroxide.
Appearance Steel-gray or black powder.Soluble in concentrated acids; insoluble in water.
Melting point  895 °C (dec.)(lit.)
density  6.11 g/mL at 25 °C(lit.)
storage temp.  Inert atmosphere,Room Temperature
solubility  insoluble in H2O; soluble in concentrated acid solutions
form  powder
color  gray-black
Water Solubility  insoluble H2O; soluble conc acids [HAW93]
Uses
Pigment, coloring enamels, glazing pottery.
EPA Substance Registry System Cobalt oxide (Co2O3) (1308-04-9)

Safety Data

Hazard Codes  Xn
Risk Statements 
Safety Statements 
WGK Germany  1
RTECS  GG2500000
Safety Profile
: Moderately toxic by intraperitoneal and subcutaneous routes. Questionable carcinogen. Violent reaction with hydrogen peroxide. The oxide increases the sensitivity of nitroalkanes (e.g., nitromethane, nitroethane, and 1 nitropropane) to heat or detonation. See also COBALT COMPOUNDS.
Toxicity
mouse,LD50,subcutaneous,2064mg/kg (2064mg/kg),Zhurnal Vsesoyuznogo Khimicheskogo Obshchestva im. D.I. Mendeleeva. Journal of the D.I. Mendeleeva All-Union Chemical Society. Vol. 19, Pg. 186, 1974.

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