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Cobalt Sulfate

  • Cobalt Sulfate
  • Cobalt Sulfate
  • Cobalt Sulfate

Cobalt Sulfate

Cobalt Sulfate
CAS No.: 10124-43-3
Molecular Formula: CoO4S
Molecular Weight: 155

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PRODUCT DESCRIPTION

Cobalt Sulfate is an inorganic salt usually appearing as a reddish crystalline solid. It is soluble in water and has good stability. It is mainly used in electroplating, battery manufacturing, catalyst production, feed additives, and as a raw material for preparing other cobalt compounds.


Chemical Properties

PropertyValue
Melting Pointdecomposes at 1140°C [JAN85]
Densityd425 3.71
Vapor Pressure0Pa at 20°C
Refractive Index1.639
SolubilitySoluble in water
FormRed orthogonal crystals
ColorRed rhombic crystals, crystalline
OdorOdorless
Water Solubilitydissolves slowly in boiling H2O [MER06]; g/100g solution H2O: 19.7 ± 0.1 (0°C), 27.2 ± 0.1 (25°C), 27.8 (10°C); solid phase, CoSO4 · 7H2O (0°C, 25°C), CoSO4 · H2O (100°C) [KRU93]
Merck13,2473
InChIInChI=1S/Co.H2O4S.H2O/c;1-5(2,3)4;/h;(H2,1,2,3,4);1H2/q+2;;/p-2
InChIKeyBGORGFZEVHFAQU-UHFFFAOYSA-L
SMILESS([O-])([O-])(=O)=O.O.[Co+2]
LogP-1.031 (est)
CAS Database10124-43-3 (CAS DataBase Reference)
NIST Chemical Substances InformationCobalt sulfate (10124-43-3)
EPA Chemical Substances InformationCobalt(II) sulfate (10124-43-3)


Safety Information

PropertyValue
Hazard symbolsT, N
Hazard class codes49-42/43-51/53-50/53-22-68-60
Safety descriptions53-23-36/37-45-61-60-22
UN dangerous goods numberUN 3082 9/PG 3
WGK Germany2
TSCATSCA listed
Storage class6.1C - Combustible, acute toxicity Category 3
Toxic compounds or compounds causing chronic effects
Hazard class (category)Acute toxicity, Category 4, Oral
Hazardous to the aquatic environment — acute hazard, Category 1
Hazardous to the aquatic environment — long-term hazard, Category 1
Carcinogenicity, Category 1B, Inhalation
Eye irritation, Category 2
Germ cell mutagenicity, Category 2
Reproductive toxicity, Category 1B
Respiratory sensitization, Category 1
Skin sensitization, Category 1
Hazardous substances data10124-43-3 (Hazardous Substances Data)


Product Usage

Cobalt Sulfate is a pivotal inorganic compound that plays an indispensable role in modern industry, particularly in the energy transition. It serves as a core raw material for manufacturing lithium-ion battery cathodes (such as NCM precursors), directly influencing energy density and stability. In the electroplating industry, it is used to prepare cobalt plating solutions, providing components with superior hardness and oxidation resistance. Furthermore, it is widely applied as a feed additive, providing essential trace elements for Vitamin $B_{12}$ synthesis in ruminants. In the paints and inks sector, it acts as a highly efficient catalyst (drier) to accelerate drying times, while in ceramics and glass manufacturing, it remains a classic colorant for producing vibrant deep blue hues.

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