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Cobalt

Product NameCobalt

CAS7440-48-4

MFCo

MW58.93

EINECS231-158-0

MOL File7440-48-4.mol

Chemical Properties

Melting point 1495°C
Boiling point 2900 °C (lit.)
Density  8.9 g/mL at 25 °C (lit.)
storage temp.  no restrictions.
solubility  H2O: soluble
form  wire
color  Pink to red to violet
Specific Gravity 8.9
Resistivity 6.24 μΩ-cm, 20°C
Water Solubility  insoluble
Merck  13,2452
Exposure limits TLV-TWA 0.05 mg as Co/m3 (ACGIH)
PEL-TWA: 0.05 mg as Co/m3 (NIOSH, OSHA)
TLV-STEL 0.1 mg as Co/m3 (ACGIH)
IDLH 20 mg as Co/m3 (NIOSH)
.
Stability Stable, but pyrophoric in air when finely divided. Incompatible with acetylene, hydrazinium nitrate, oxidizing agents, acids.
CAS DataBase Reference 7440-48-4(CAS DataBase Reference)
IARC 2B (Vol. 52) 1991, 2B (Vol. 86) 2006, 2A (Vol. 86) 2006
NIST Chemistry Reference Cobalt(7440-48-4)
EPA Substance Registry System Cobalt (7440-48-4)

Safety Information

Hazard Codes  T,Xn,F
Risk Statements  45-23/24/25-34-53-42/43-40-36/37-36/38-17-11-15
Safety Statements  53-23-26-36/37/39-45-61-37-24-22-36/37-5-43
RIDADR  UN 3264 8/PG 3
WGK Germany  3
RTECS  GF8750000
TSCA  Yes
HS Code  8105 20 00
HazardClass  4.1
PackingGroup  III
Hazardous Substances Data 7440-48-4(Hazardous Substances Data)
Toxicity LD50 orally in Rabbit: 6170 mg/kg
IDLA 20 mg Co/m3

MSDS

Usage And Synthesis

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