Cobalt(II) chloride hexahydrate
Cobalt(II) chloride hexahydrate (CAS 7791-13-1), with the linear formula CoCl₂ · 6H₂O and a molecular weight of 237.93 g/mol, is a red crystalline solid. This highly soluble inorganic salt is frequently employed as a catalyst in various chemical syntheses and finds application in inorganic chemistry. It serves as a critical reagent in laboratory research and is also used in applications such as humidity indicators.
- IUPAC
- Cobaltous chloride hexahydrate
- Synonyms
- Cobaltous chloride hexahydrateCobalt dichloride hexahydrate
Catalysis
Cobalt(II) chloride hexahydrate acts as a catalyst in organic transformations, facilitating reactions in chemical synthesis. Its coordination chemistry makes it valuable for specific catalytic processes.
Inorganic Chemistry
This compound is a fundamental reagent in inorganic chemistry for the preparation of other cobalt compounds and for studies involving coordination complexes. Its distinct colour change with hydration state also makes it useful.
Humidity Indicators
The colour of Cobalt(II) chloride hexahydrate changes reversibly from blue (anhydrous) to pink (hydrated), making it a classic indicator for atmospheric moisture levels.
Chemical Synthesis
It serves as a versatile building block in the synthesis of more complex molecules and materials within research and development settings.
| Molecular weight | 237.93 |
|---|---|
| Linear formula | CoCl2 · 6H2O |
| Assay | 98%98.0-102.0% (ACS specification) |
| Grade | ACS reagent |
| Vapour pressure | 40 mmHg (0 °C) |
| Impurities tested | ≤0.01% insolubles |
Hazard statements
- H302Harmful if swallowed
- H317May cause an allergic skin reaction
- H334May cause allergy or asthma symptoms if inhaled
- H341Suspected of causing genetic defects
- H350I
- H360F
- H410Very toxic to aquatic life with long-lasting effects
Precautionary statements
- P201Obtain special instructions before use
- P261Avoid breathing dust, fume, gas or vapours
- P273Avoid release to the environment
- P280Wear protective gloves, clothing and eye/face protection
- P308IF exposed or concerned
- P501Dispose of contents and container per local regulations
| Protective equipment | Eyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges |
|---|---|
| Transport (UN / ADR) | UN 3077 9 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | T,N |
| Risk statements (R) | 49-60-22-42/43-50/53-68 |
| Safety statements (S) | 53-45-60-61 |
| Cation traces | Ca: ≤0.005%Cu: ≤0.002%Fe: ≤0.005%K: ≤0.01%Mg: ≤0.005%Na: ≤0.05%Ni: ≤0.1%Zn: ≤0.03% |
| Anion traces | nitrate (NO3-): ≤0.01%sulfate (SO42-): ≤0.01% |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Quality Level | PREMIUM |
|---|
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Cobalt(II) chloride hexahydrate used for?
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Cobalt(II) chloride hexahydrate is used in catalysis for chemical synthesis, in inorganic chemistry research, and as a humidity indicator due to its reversible colour change with hydration.
What is the CAS number and formula for Cobalt(II) chloride hexahydrate?
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The CAS number is 7791-13-1, and its linear formula is CoCl₂ · 6H₂O.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Cobalt(II) chloride hexahydrate in ACS reagent grade, with an assay of 98.0-102.0% (ACS specification).
How should Cobalt(II) chloride hexahydrate be handled safely?
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Cobalt(II) chloride hexahydrate is a danger! It is harmful if swallowed, may cause an allergic skin reaction, may cause allergy or asthma symptoms or breathing difficulties if inhaled, is suspected of causing genetic defects, is suspected of causing cancer by inhalation, may damage fertility or the unborn child, and is very toxic to aquatic life with long lasting effects. Always wear eyeshields, face shields, appropriate gloves, and a respirator. Ensure adequate ventilation and avoid release into the environment. Consult the SDS for full safety information.
How is Cobalt(II) chloride hexahydrate packed and shipped?
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Cobalt(II) chloride hexahydrate is packaged according to industry best practices for chemical reagents and is exported globally by Tech Serve Solutions.
How can I request a quote or sample for Cobalt(II) chloride hexahydrate?
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To request a quote or sample, please contact our sales team through the website or by phone, providing the product name and CAS number (7791-13-1).
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