Cobalt(II) chloride, anhydrous, 97%, Thermo Scientific Chemicals

Product Code	Brand	Quantity
11439517	Thermo Scientific Alfa Aesar B22031.14	25 g
11449517	Thermo Scientific Alfa Aesar B22031.22	100 g
11459517	Thermo Scientific Alfa Aesar B22031.36	500 g

Description

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.

Chemical Identifiers

• CAS: 7646-79-9
• Molecular Weight (g/mol): 129.83
• InChI Key: GVPFVAHMJGGAJG-UHFFFAOYSA-L
• IUPAC Name: λ²-cobalt(2+) dichloride

• Molecular Formula: Cl2Co
• MDL Number: MFCD00010938
• 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
• SMILES: [Cl-].[Cl-].[Co++]

Specifications

• Boiling Point: 1049°C
• CAS: 7646-79-9
• Linear Formula: CoCl₂
• UN Number: UN3077
• 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
• InChI Key: GVPFVAHMJGGAJG-UHFFFAOYSA-L
• IUPAC Name: λ²-cobalt(2+) dichloride
• Formula Weight: 129.84
• Odor: Odorless
• Density: 3.367

• Melting Point: 735°C
• Molecular Formula: Cl2Co
• MDL Number: MFCD00010938
• Merck Index: 14,2437
• Solubility Information: Freely soluble in water and methanol. Soluble in alcohol,acetone,ether,glycerol,and pyridine.
• SMILES: [Cl-].[Cl-].[Co++]
• Molecular Weight (g/mol): 129.83
• Percent Purity: 97%
• Sensitivity: Hygroscopic
• Chemical Name or Material: Cobalt(II) chloride, anhydrous

Safety and Handling

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.

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

H302+H332-H317-H318-H334-H335-H341-H350i-H360F-H373

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missing translation for 'einecsNumber' : 231-589-4

missing translation for 'rtecsNumber' : GF9800000

missing translation for 'tsca' : Yes

Recommended Storage : Ambient temperatures

Product Identifier

• Product Description: Cobalt(II) chloride, anhydrous

Signal Word

• Danger

Hazard Category

• Acute toxicity Category 4
• LONG-TERM AQUATIC HAZARD Chronic 1
• ACUTE AQUATIC Acute 1
• Carcinogenicity Category 1B
• Serious eye damage/eye irritation Category 1
• Germ cell mutagenicity Category 2
• Reproductive toxicity Category 1B
• Respiratory sensitiser Category 1
• Skin sensitiser Category 1

Hazard Statement

• H302-Harmful if swallowed.
• H317-May cause an allergic skin reaction.
• H318-Causes serious eye damage.
• H332-Harmful if inhaled.
• H334-May cause allergy or asthma symptoms or breathing difficulties if inhaled.
• H341-Suspected of causing genetic defects.
• H350i-May cause cancer by inhalation.
• H360F-May damage fertility.
• H400-Very toxic to aquatic life.
• H410-Very toxic to aquatic life with long lasting effects.

Precautionary Statement

• P280-Wear protective gloves/protective clothing/eye protection/face protection.
• P302+P352-IF ON SKIN: Wash with plenty of water/soap.
• P304+P340-IF INHALED: Remove person to fresh air and keep comfortable for breathing.
• P305+P351+P338-IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
• P310-Immediately call a POISON CENTER/doctor/.

Supplemental information

• MIXTURE LIST-Contains : Cobalt chloride (CoCl2)

RUO – Research Use Only