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ChemicalBook >> CAS DataBase List >> Cobalt(II) hydroxide

Cobalt(II) hydroxide

Cobalt(II) hydroxide price.
  • $15 - $1950
  • Product name: Cobalt(II) hydroxide
  • CAS: 21041-93-0
  • MF: CoH2O2
  • MW: 92.95
  • EINECS:244-166-4
  • MDL Number:MFCD00016015
  • Synonyms:Cobalt(II) hydroxide technical grade, 95%;cobalt (Ⅱ) hydroxide;Cobalt(II) hydroxide, 99.9% trace metals basis;Cobalt(II) hydroxideUltra Pure, ≥ 99.9% (Assay);Cobalt(II) hydroxide≥ 97% (Assay);COBALT HYDROXIDE BLACK;COBALT(II) HYDROXIDE;cobalt(2+)hydroxide
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  • AK Scientific
  • Ambeed
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  • ManufacturerAK Scientific
  • Product number8485AF
  • Product descriptionCobalthydroxide
  • Packaging5g
  • Price$27
  • Updated2021-12-16
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  • ManufacturerAK Scientific
  • Product number8485AF
  • Product descriptionCobalthydroxide
  • Packaging25g
  • Price$54
  • Updated2021-12-16
  • Buy
  • ManufacturerAmbeed
  • Product numberA287321
  • Product descriptionCobalt(II) hydroxide 99%
  • Packaging25g
  • Price$15
  • Updated2021-12-16
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  • ManufacturerArctom
  • Product numberAS507712
  • Product descriptionCobalt(II) hydroxide 99%
  • Packaging25g
  • Price$15
  • Updated2021-12-16
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  • ManufacturerBLDpharm
  • Product numberBD122065
  • Product descriptionCobalt(II) hydroxide 99%
  • Packaging25g
  • Price$15
  • Updated2021-12-16
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  • ManufacturerChem-Impex
  • Product number30274
  • Product descriptionCobalt(II) hydroxide ≥99.9%(Tracemetalsbasis)
  • Packaging25G
  • Price$20
  • Updated2026-05-19
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  • ManufacturerChem-Impex
  • Product number30273
  • Product descriptionCobalt(II) hydroxide ≥97%(Assay)
  • Packaging25G
  • Price$22.03
  • Updated2026-05-19
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  • ManufacturerChem-Impex
  • Product number30273
  • Product descriptionCobalt(II) hydroxide ≥97%(Assay)
  • Packaging100G
  • Price$39.16
  • Updated2026-05-19
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  • ManufacturerChem-Impex
  • Product number30273
  • Product descriptionCobalt(II) hydroxide ≥97%(Assay)
  • Packaging250G
  • Price$68.9
  • Updated2026-05-19
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  • ManufacturerChem-Impex
  • Product number30274
  • Product descriptionCobalt(II) hydroxide ≥99.9%(Tracemetalsbasis)
  • Packaging100G
  • Price$50
  • Updated2026-05-19
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  • ManufacturerChem-Impex
  • Product number30274
  • Product descriptionCobalt(II) hydroxide ≥99.9%(Tracemetalsbasis)
  • Packaging250G
  • Price$110
  • Updated2026-05-19
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  • ManufacturerChem-Impex
  • Product number30273
  • Product descriptionCobalt(II) hydroxide ≥97%(Assay)
  • Packaging1KG
  • Price$219.13
  • Updated2026-05-19
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  • ManufacturerChem-Impex
  • Product number30274
  • Product descriptionCobalt(II) hydroxide ≥99.9%(Tracemetalsbasis)
  • Packaging1KG
  • Price$395
  • Updated2026-05-19
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  • ManufacturerChem-Impex
  • Product number30273
  • Product descriptionCobalt(II) hydroxide ≥97%(Assay)
  • Packaging2.5KG
  • Price$489.43
  • Updated2026-05-19
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  • ManufacturerChem-Impex
  • Product number30273
  • Product descriptionCobalt(II) hydroxide ≥97%(Assay)
  • Packaging5KG
  • Price$908.86
  • Updated2026-05-19
  • Buy
  • ManufacturerChem-Impex
  • Product number30274
  • Product descriptionCobalt(II) hydroxide ≥99.9%(Tracemetalsbasis)
  • Packaging5KG
  • Price$1950
  • Updated2026-05-19
  • Buy
Manufacturer Product number Product description Packaging Price Updated Buy
AK Scientific 8485AF Cobalthydroxide 5g $27 2021-12-16 Buy
AK Scientific 8485AF Cobalthydroxide 25g $54 2021-12-16 Buy
Ambeed A287321 Cobalt(II) hydroxide 99% 25g $15 2021-12-16 Buy
Arctom AS507712 Cobalt(II) hydroxide 99% 25g $15 2021-12-16 Buy
BLDpharm BD122065 Cobalt(II) hydroxide 99% 25g $15 2021-12-16 Buy
Chem-Impex 30274 Cobalt(II) hydroxide ≥99.9%(Tracemetalsbasis) 25G $20 2026-05-19 Buy
Chem-Impex 30273 Cobalt(II) hydroxide ≥97%(Assay) 25G $22.03 2026-05-19 Buy
Chem-Impex 30273 Cobalt(II) hydroxide ≥97%(Assay) 100G $39.16 2026-05-19 Buy
Chem-Impex 30273 Cobalt(II) hydroxide ≥97%(Assay) 250G $68.9 2026-05-19 Buy
Chem-Impex 30274 Cobalt(II) hydroxide ≥99.9%(Tracemetalsbasis) 100G $50 2026-05-19 Buy
Chem-Impex 30274 Cobalt(II) hydroxide ≥99.9%(Tracemetalsbasis) 250G $110 2026-05-19 Buy
Chem-Impex 30273 Cobalt(II) hydroxide ≥97%(Assay) 1KG $219.13 2026-05-19 Buy
Chem-Impex 30274 Cobalt(II) hydroxide ≥99.9%(Tracemetalsbasis) 1KG $395 2026-05-19 Buy
Chem-Impex 30273 Cobalt(II) hydroxide ≥97%(Assay) 2.5KG $489.43 2026-05-19 Buy
Chem-Impex 30273 Cobalt(II) hydroxide ≥97%(Assay) 5KG $908.86 2026-05-19 Buy
Chem-Impex 30274 Cobalt(II) hydroxide ≥99.9%(Tracemetalsbasis) 5KG $1950 2026-05-19 Buy

Properties

Melting point :°Cd ec.)
Density :3.597 g/mL at 25 °C(lit.)
vapor pressure :0Pa at 20℃
storage temp. :Inert atmosphere,Room Temperature
solubility :slightly soluble in H2O; soluble in acid solutions
form :Powder
Specific Gravity :3.597
color :Pink to purple
PH :9.15(1 mM solution);9.15(10 mM solution);9.15(100 mM solution)
Water Solubility :Soluble in acids and ammonia. Very slightly soluble in water. Insoluble in dilute alkalis.
Sensitive :Air Sensitive
Merck :14,2442
Solubility Product Constant (Ksp) :pKsp: 14.23
Exposure limits :ACGIH: TWA 0.02 mg/m3
Stability :Stability
InChI :1S/Co.2H2O/h;2*1H2/q+2;;/p-2
InChIKey :ASKVAEGIVYSGNY-UHFFFAOYSA-L
SMILES :O[Co]O
CAS DataBase Reference :21041-93-0(CAS DataBase Reference)
EPA Substance Registry System :Cobalt hydroxide (Co(OH)2) (21041-93-0)

Safety Information

Symbol(GHS): Skull and Crossbones (GHS06)Health Hazard (GHS08)Environment (GHS09)
Signal word: Danger
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H302 Harmful if swallowed Acute toxicity,oral Category 4 Warning P264, P270, P301+P312, P330, P501
H317 May cause an allergic skin reaction Sensitisation, Skin Category 1 Warning P261, P272, P280, P302+P352,P333+P313, P321, P363, P501
H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P
H330 Fatal if inhaled Acute toxicity,inhalation Category 1, 2 Danger P260, P271, P284, P304+P340, P310,P320, P403+P233, P405, P501
H334 May cause allergy or asthma symptoms or breathing difficulties if inhaled Sensitisation, respiratory Category 1 Danger P261, P285, P304+P341, P342+P311,P501
H350 May cause cancer Carcinogenicity Category 1A, 1B Danger
H360 May damage fertility or the unborn child Reproductive toxicity Category 1A, 1B Danger
H410 Very toxic to aquatic life with long lasting effects Hazardous to the aquatic environment, long-term hazard Category 1 Warning P273, P391, P501
Precautionary statements:
P273 Avoid release to the environment.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P301+P312 IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.
P302+P352 IF ON SKIN: wash with plenty of soap and water.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

Description

Cobalt(II) hydroxide is used as a drying agent for paints and varnishes. It acts as an aid to dry the lithographic inks and catalyst in the preparation of battery electrode impregnating solutions. It is also involved in the synthesis of other cobalt compounds.

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