Cadmium chloride
Cadmium chloride is a chemical compound with the formula CdCl₂. It is a white crystalline solid that is highly soluble in water and slightly soluble in alcohol. Cadmium chloride is primarily used in the electroplating of cadmium, in the production of cadmium sulfide, and as a reagent in the laboratory.
Properties[edit | edit source]
Cadmium chloride is a white, hygroscopic solid. It has a melting point of 568 °C and a boiling point of 960 °C. The compound is highly soluble in water, forming a clear, colorless solution. It is also soluble in methanol, ethanol, and acetone.
Production[edit | edit source]
Cadmium chloride can be produced by the reaction of cadmium metal with chlorine gas: Cd + Cl₂ → CdCl₂
It can also be prepared by the reaction of cadmium oxide or cadmium carbonate with hydrochloric acid: CdO + 2 HCl → CdCl₂ + H₂O CdCO₃ + 2 HCl → CdCl₂ + CO₂ + H₂O
Uses[edit | edit source]
Cadmium chloride has several applications, including:
- Electroplating: It is used in the electroplating of cadmium to provide a corrosion-resistant coating.
- Pigments: It is used in the production of cadmium sulfide, which is a yellow pigment.
- Laboratory reagent: It is used as a reagent in various chemical reactions and analyses.
Safety[edit | edit source]
Cadmium chloride is highly toxic and poses significant health risks. Exposure can occur through inhalation, ingestion, or skin contact. It is classified as a carcinogen and can cause severe damage to the lungs, kidneys, and bones. Proper safety measures, including the use of personal protective equipment, are essential when handling this compound.
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