Cobalt(II) hydroxide, 99.9% (metals basis)

Description

CAS: 21041-93-0 | CoH2O2 | 92.95 g/mol

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.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Specifications

Chemical Identifiers

• CAS: 21041-93-0
• Molecular Formula: CoH2O2
• Molecular Weight (g/mol): 92.95
• MDL Number: MFCD00016015
• InChI Key: ASKVAEGIVYSGNY-UHFFFAOYSA-L
• Synonym: cobalt hydroxide, cobalt ii hydroxide, cobaltous hydrate, acmc-20aleg, cobalt 2+ dihydroxide, cobalt ii hydroxide metals basis
• PubChem CID: 10129900
• IUPAC Name: cobalt(2+);dihydroxide
• SMILES: [OH-].[OH-].[Co++]

• Melting Point: 250°C (decomposition)
• Color: Pink to Purple
• Physical Form: Powder
• Quantity: 100 g
• Linear Formula: Co(OH)₂
• Merck Index: 14,2442
• Solubility Information: Soluble in acids and ammonia; Very slightly soluble in water; Insoluble in dilute alkalis.
• Formula Weight: 92.95
• Percent Purity: 99.9%
• Odor: Odorless
• Sensitivity: Air Sensitive
• Assay: (metals basis)
• Chemical Name or Material: Cobalt(II) hydroxide

Safety and Handling

Hazard Category	H302+H332-H317-H319-H334-H350
Hazard Statement	GHS H Statement H302-H317 Harmful if swallowed. May cause an allergic skin reaction.
Precautionary Statement	P201-P202-P261-P264b-P270-P271-P272-P280-P281-P285-P301+P312-P302+P352-P304+P340-P305+P351+P338-P308+P313-P330-P333+P313-P342+P311-P363-P501c
DOTInformation	Hazard Class: 9; Packaging Group: III
EINECSNumber	244-166-4
RTECSNumber	GG0904500
TSCA	Yes
Recommended Storage	Ambient temperatures; Store under Nitrogen

SDS

RUO – Research Use Only