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21041-93-0

Name Cobalt hydroxide
CAS 21041-93-0
EINECS(EC#) 244-166-4
Molecular Formula CoH2O2
MDL Number MFCD00016015
Molecular Weight 92.95
MOL File 21041-93-0.mol

Chemical Properties

Appearance Rose-red powder.Soluble in acids and ammonium salt solutions; insoluble in water and alkalies.
Melting point  °Cd ec.)
density  3.597 g/mL at 25 °C(lit.)
vapor pressure  0Pa@20°C
storage temp.  Inert atmosphere,Room Temperature
solubility  Soluble in acids and ammonia. Very slightly soluble in water. Insoluble in dilute alkalis.
form  Powder
color  Pink to purple
Specific Gravity 3.597
PH 9.15(1 mM solution);9.15(10 mM solution);9.15(100 mM solution)
Stability: Stability
Water Solubility  Soluble in acids and ammonia. Very slightly soluble in water. Insoluble in dilute alkalis.
Sensitive  Air Sensitive
Merck  14,2442
Solubility Product Constant (Ksp) pKsp: 14.23
Exposure limits ACGIH: TWA 0.02 mg/m3
Uses
Cobalt salts, paint and varnish driers, catalyst, storage-battery electrodes.
CAS DataBase Reference 21041-93-0(CAS DataBase Reference)
EPA Substance Registry System 21041-93-0(EPA Substance)

Safety Data

Hazard Codes  Xn
Risk Statements 
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed .
R36/37/38:Irritating to eyes, respiratory system and skin .
Safety Statements 
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S37/39:Wear suitable gloves and eye/face protection .
RIDADR  UN 3077 9 / PGIII
WGK Germany  3
RTECS  GG0904500
TSCA  Yes

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