Cobalt(II) chloride , 97% , 7646-79-9

Synonym(s):
Cobaltous chloride;Dichlorocobalt;Cobalt dichloride;Cobalt muriate;Cobalt(II)-chloride solution

CAS NO.：7646-79-9

Empirical Formula: Cl2Co

Molecular Weight: 129.84

MDL number: MFCD00010938

EINECS: 231-589-4

Update time: 2022-07-08

PRODUCT Properties

Melting point:

724 °C(lit.)

Boiling point:

1049 °C

Density

3.35

vapor pressure

40 mm Hg ( 0 °C)

Flash point:

500°C

storage temp.

Store below +30°C.

solubility

585.9g/l soluble

form

beads

color

Pale blue

Specific Gravity

3.356

pH (50g/l, 25℃) : >=3.0

Water Solubility

soluble

Sensitive

Hygroscopic

Crystal Structure

CdCl2 type

crystal system

Three sides

Sublimation

500 ºC

Merck

14,2437

Space group

R3m

Lattice constant

a/nm	b/nm	c/nm	α/o	β/o	γ/o	V/nm3
0.355	0.355	1.74	90	90	120	0.19

Exposure limits

ACGIH: TWA 0.02 mg/m3

Stability:

hygroscopic

Description and Uses

blue crystals (anhydrous)
violet-blue (dihydrate)
rose red crystals (hexahydrate)
Sinks and mixes with water. Pale blue leaflets, turns pink upon exposure to moist air.

Cobalt chloride (CoCl2) is used to manufacture vitamin B12, even though the compound itself can cause damage to red blood cells. It is also used as a dye mordant (to fix the dye to the textile so that it will not run). It is also of use in manufacturing solid lubricants, as an additive to fertilizers, as a chemical reagent in laboratories, and as an absorbent in gas masks, electroplating, and the manufacture of vitamin B12.

Safety

Symbol(GHS)	GHS07,GHS08,GHS09
Signal word	Danger
Hazard statements	H302-H317-H334-H341-H350i-H360F-H410
Precautionary statements	P202-P273-P280-P301+P312-P302+P352-P308+P313
Hazard Codes	T,N
Risk Statements	49-42/43-52/53-50/53-22-68-41-60-51/53
Safety Statements	53-23-36/37-45-60-61-22-39-26
RIDADR	UN 2923 8/PG 3
WGK Germany	2
RTECS	GF9800000
F	9-21
TSCA	Yes
HazardClass	8
PackingGroup	III
HS Code	28273930
Toxicity	LD50 in mice, rats (mg/kg): 360.0, 171.0 orally; 92.6, 36.9 i.p.; 23.3, 4.3 i.v. (Singh, Junnarkar)