Salts & Minerals
REACH
Cobalt sulfate
CAS Number
10124-43-3
EC Number
233-334-2
Abbreviation
CoSO4
What is Cobalt sulfate?
Cobalt sulfate (CAS 10124-43-3), also known as cobalt monosulfate, is an inorganic cobalt salt.
Where is Cobalt sulfate used?
- Electroplating and surface finishing: bath formulations to deposit cobalt
- Cobalt-alloy coatings improve hardness and wear resistance on metal components.
- Battery and energy storage: precursor in synthesizing cathode active materials for lithium-ion chemistries
- Agriculture: micronutrient supplement in fertilizers and animal feed to address cobalt deficiencies in livestock and soil
- Catalyst production: precursor for cobalt-based catalysts in hydroprocessing and chemical synthesis
Good to know: Battery-grade material is subject to tighter purity specifications relevant to cathode precursor production.
Commercial specifications
- Packaging from small drums to bulk quantities
Other Names (Synonyms)
CoSO4|cobalt monosulfate|cobalt brown|cobalt (2+) sulfate|cobaltous sulfate|Cobalt(II) sulfate|Cobalt(II) sulphate|Cobalt sulfate (1:1)
What are the physical properties of Cobalt sulfate?
Melting Point 735 °C
Density 3.71 g/cm³ @ Temp: 25 °C
Appearance Red powder or rose pink crystalline solid. Odorless.
Color red orthorhombic crystals, crystalline
Odor Odorless
Form red orthorhombic crystals
Water Solubility dissolves slowly in boiling H2O [MER06]; g/100g solution H2O: 19.7 ± 0.1 (0°C), 27.2 ± 0.1 (25°C), 27.8 (100°C); solid phase, CoSO4 · 7H2O (0°C, 25°C), CoSO4 ·H2O (100°C) [KRU93]
Vapor Pressure 0Pa at 20℃
Refractive Index 1.639
Log P -1.031 (est)
How is Cobalt sulfate classified and handled safely? Learn More
Danger
GHS07· Irritant GHS08· Health Hazard GHS09· Environmental Hazard
Hazard Statements
H302 Harmful if swallowed
H317 May cause an allergic skin reaction
H319 Causes serious eye irritation
H334 May cause allergy or asthma symptoms or breathing difficulties if inhaled
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 sulfate?
UN Number 3082
ADR Class 9
Packing Group III
Storage Class 6.1C - Combustible acute toxic Cat.3
toxic compounds or compounds which causing chronic effects
WGK (Germany) 2