Cobalt(II) chloride, anhydrous, 97%

Description

CAS: 7646-79-9 | Cl2Co | 129.83 g/mol

Cobalt(II) chloride is used in humidity indicator in weather instruments. In the anhydrous form, it finds use in electroplating of cobalt, in organic chemistry and is a precursor to cobaltocene, (bis(cyclopentadienyl)cobalt(II), which is a good reducing agent. It also serves as a Lewis acid. Cobalt chloride is an indicator for water in desiccants, owing to the reversible hydration/dehydration coupled with distinct color change. Cobalt chloride is useful for producing invisible ink as it turns blue when heated and becomes invisible once it gets cooled. Cobalt(II) chloride catalyzes cross coupling of aryl halides or vinyl halides with aryl grignard reagents in excellent yields.

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.

Applications
Cobalt(II) chloride is used in humidity indicator in weather instruments. In the anhydrous form, it finds use in electroplating of cobalt, in organic chemistry and is a precursor to cobaltocene, (bis(cyclopentadienyl)cobalt(II), which is a good reducing agent. It also serves as a Lewis acid. Cobalt chloride is an indicator for water in desiccants, owing to the reversible hydration/dehydration coupled with distinct color change. Cobalt chloride is useful for producing invisible ink as it turns blue when heated and becomes invisible once it gets cooled. Cobalt(II) chloride catalyzes cross coupling of aryl halides or vinyl halides with aryl grignard reagents in excellent yields.

Solubility
Freely soluble in water and methanol. Soluble in alcohol, acetone, ether, glycerol, and pyridine.

Notes
Hygroscopic. Incompatible with strong oxidizing agents.

Specifications

Chemical Identifiers

• CAS: 7646-79-9
• Molecular Formula: Cl2Co
• Molecular Weight (g/mol): 129.83
• MDL Number: MFCD00010938
• InChI Key: GVPFVAHMJGGAJG-UHFFFAOYSA-L
• Synonym: cobalt ii chloride, cobaltchloride, cobalt chloride 0.1 m solution, cobalt ii chloride, anhydrous, cobalt ii-chloride, curator_000013, cobalt chloride anhydrous, wln: co g2, cobalt-ii-chloride
• IUPAC Name: λ²-cobalt(2+) dichloride
• SMILES: [Cl-].[Cl-].[Co++]

• Boiling Point: 1049°C
• Melting Point: 735°C
• Quantity: 25 g
• Linear Formula: CoCl₂
• UN Number: UN3077
• Merck Index: 14,2437
• Solubility Information: Freely soluble in water and methanol. Soluble in alcohol,acetone,ether,glycerol,and pyridine.
• Formula Weight: 129.84
• Percent Purity: 97%
• Odor: Odorless
• Sensitivity: Hygroscopic
• Density: 3.367
• Chemical Name or Material: Cobalt(II) chloride, anhydrous

Safety and Handling

Hazard Category	H302+H332-H317-H318-H334-H335-H341-H350i-H360F-H373
Hazard Statement	GHS H Statement H334-H350-H360-H341-H302-H317 May cause allergy or asthma symptoms or breathing difficulties if inhaled. May cause cancer. May damage fertility or the unborn child. Suspected of causing genetic defects. Harmful if swallowed. May cause an allergic skin reaction.
Precautionary Statement	P201-P202-P260-P264b-P270-P271-P272-P280g-P281-P285-P301+P312-P302+P352-P304+P340-P305+P351+P338-P308+P313-P310-P330-P333+P313-P342+P311-P363-P501c
DOTInformation	Transport Hazard Class: 9; Packing Group: III; Proper Shipping Name: ENVIRONMENTALLY HAZARDOUS SUBSTANCES, SOLID, N.O.S.
EINECSNumber	231-589-4
RTECSNumber	GF9800000
TSCA	Yes
Recommended Storage	Ambient temperatures

SDS

RUO – Research Use Only