Cobalt nitrate is an inorganic compound with the formula Co(NO₃)₂. It is commonly found as a hexahydrate, Co(NO₃)₂·6H₂O, which appears as red crystals. This compound is used in various industrial and laboratory applications. Here’s a detailed overview of cobalt nitrate, including its properties, uses, and safety information.
Properties of Cobalt Nitrate
- Chemical Formula: Co(NO₃)₂
- Molar Mass: 182.94 g/mol (anhydrous), 291.03 g/mol (hexahydrate)
- Appearance: Red to red-brown crystals (hexahydrate)
- Melting Point: 55°C (hexahydrate decomposes)
- Solubility: Highly soluble in water, ethanol, and acetone
- Density: 2.49 g/cm³ (hexahydrate)
Applications and Uses
- Catalysts: Used in the preparation of catalysts for various chemical reactions.
- Pigments: Employed in the production of cobalt-based pigments.
- Ceramics: Used in the ceramics industry to impart blue colors to glazes and glass.
- Electroplating: Utilized in electroplating processes to provide a protective cobalt coating.
- Analytical Reagent: Used as a reagent in analytical chemistry for the detection of various substances.
Safety and Handling
- Hazards: Cobalt nitrate is toxic and can cause skin irritation, respiratory issues, and is harmful if swallowed. It is also a strong oxidizing agent and can intensify fires.
- First Aid Measures:
- Ingestion: Do not induce vomiting. Rinse mouth with water and seek immediate medical attention.
- Skin Contact: Wash thoroughly with soap and water. Remove contaminated clothing.
- Eye Contact: Rinse immediately with plenty of water for at least 15 minutes and seek medical advice.
- Inhalation: Move to fresh air immediately. If breathing is difficult, provide oxygen and seek medical attention.
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