| Formula / Notation | CoCl2 |
|---|---|
| CAS Number | 7646-79-9 |
| Molecular Weight | 129.84 |
| Melting Point | 187 °F (USCG, 1999) |
| Boiling Point | 1049 °C |
| Density | 1.924 at 68 °F (USCG, 1999) - Denser than water; will sink |
| Solubility | Soluble in water |
| Appearance | Cobalt chloride is a pink to red solid with a slight sharp odor. Sinks and mixes with water. Pale blue leaflets, turns pink upon exposure to moist air. |
| Also Known As | cobalt(2+) dichloride; Dichlorocobalt; Cobalt dichloride; COBALTOUS CHLORIDE; Cobalt muriate; Cobaltous dichloride; Cobaltous chloride anhydrous; Cobalt(2+) chloride; Kobalt chlorid; Cobaltum muriaticum |
| Category | Salts |
What is Cobalt(II) chloride?
Cobalt dichloride is a cobalt salt in which the cobalt metal is in the +2 oxidation state and the counter-anion is chloride. It is used as an indicator for water in desiccants. It has a role as a sensitiser, a calcium channel blocker, a two-colour indicator and an allergen. It is a cobalt salt and an inorganic chloride. It contains a cobalt(2+).
Formula & Notation
IUPAC Name: cobalt(2+) dichloride
Other Names / Synonyms: cobalt(2+) dichloride; Dichlorocobalt; Cobalt dichloride; COBALTOUS CHLORIDE; Cobalt muriate; Cobaltous dichloride; Cobaltous chloride anhydrous; Cobalt(2+) chloride; Kobalt chlorid; Cobaltum muriaticum
Properties & Characteristics
Physical Data
| Property | Value |
|---|---|
| Melting Point | 187 °F (USCG, 1999) |
| Boiling Point | 1049 °C |
| Density | 1.924 at 68 °F (USCG, 1999) - Denser than water; will sink |
| Molecular Weight | 129.84 |
| Solubility | Soluble in water |
| Appearance | Cobalt chloride is a pink to red solid with a slight sharp odor. Sinks and mixes with water. Pale blue leaflets, turns pink upon exposure to moist air. |
Uses & Applications
Safety Information
Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.
Key Facts
Frequently Asked Questions
Cobalt dichloride is a cobalt salt in which the cobalt metal is in the +2 oxidation state and the counter-anion is chloride. It is used as an indicator for water in desiccants. It has a role as a sensitiser, a calcium channel blocker, a two-colour indicator and an allergen. It is a cobalt salt and an inorganic chloride. It contains a cobalt(2+).
Used in food preservation, water treatment, chemical synthesis, fertilizers, and pharmaceutical applications.
Irritant or toxic depending on specific salt. Some salts are oxidising agents or toxic to aquatic environments. Consult SDS before use.
The formula or notation for Cobalt(II) chloride is: CoCl2