Salts & Minerals
REACH
Cobalt chloride
CAS Number
7646-79-9
EC Number
231-589-4
What is Cobalt chloride?
Cobalt chloride (CAS 7646-79-9), also sold as cobaltous chloride anhydrous or CoCl2, is an inorganic cobalt salt.
Where is Cobalt chloride used?
- Catalyst precursor, colorant and source of bioavailable cobalt in trace mineral applications
- Agriculture and animal feed: corrects cobalt deficiencies in livestock
- Mineral premixes and fertilizer formulations
- Textile and leather: mordant that fixes dyes and improves color fastness
- Catalyst manufacturing: precursor for hydrodesulfurization and Fischer-Tropsch catalysts in refinery and petrochemical operations
- Humidity indicator in desiccant systems and silica gel products
- Its color-change behavior drives procurement in packaging and electronics protection.
Good to know: The hexahydrate is the more common commercial grade; the anhydrous powder is also supplied.
Commercial specifications
- Purity typically 97% to 99%+
- Packaging in drums and bulk quantities
Other Names (Synonyms)
CoCl2|cobaltous dichloride|cobaltous chloride anhydrous|cobalt muriate|Cobalt dichloride|COBALTOUS CHLORIDE|Cobalt(2+) chloride|Kobalt chlorid
What are the physical properties of Cobalt chloride?
Melting Point 735 °C
Boiling Point 1049 °C
Density 3.36 g/cm³ @ Temp: 25 °C
Flash Point 500°C
Appearance (1) Blue, (2) ruby-red crystals.Soluble in water, alcohol, and acetone.
Color Pale blue
Odor Slight sharp odor
Form beads
Water Solubility soluble
Vapor Pressure 40 mm Hg ( 0 °C)
pH pH (50g/l, 25℃) : >=3.0
How is Cobalt chloride classified and handled safely? Learn More
Danger
GHS07· Irritant GHS08· Health Hazard GHS09· Environmental Hazard GHS05· Corrosive GHS06· Toxic
Hazard Statements
H301 Toxic if swallowed
H302 Harmful if swallowed
H315 Causes skin irritation
H317 May cause an allergic skin reaction
Precautionary Statements
P203 Obtain, consult and follow expert instructions for use.
P233 Keep container tightly closed.
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
Which trade and regulatory codes apply to Cobalt chloride?
HS Code 28273930
UN Number 2923
ADR Class 8
Packing Group III
Storage Class 6.1C - Combustible acute toxic Cat.3
toxic compounds or compounds which causing chronic effects
WGK (Germany) 2