 Chloride Copper Chloride Anhydrous "Pin It")
Copper(II) Chloride (Copper Chloride)
Other Names: Cupric chloride
CAS Number: 7447-39-4
Molecular Formula: CuCl₂
Molar Mass: 134.45 g/mol
Appearance: Green to bluish-green crystalline solid or powder
Copper(II) chloride is an inorganic compound composed of copper and chlorine. It is highly hygroscopic and typically appears as greenish-blue crystals. In aqueous solution, it forms a bright blue color due to hydrated copper ions.
Chemical and Physical Properties
Density: 2.51 g/cm³
Melting Point: 620 °C
Boiling Point: 993 °C (decomposes)
Solubility in Water: Soluble (75 g/100 mL at 25°C)
Solubility in Other Solvents: Soluble in ethanol, methanol, and acetone
Odor: Odorless
Applications
Chemical Synthesis: Used as a catalyst and oxidizing agent in organic and inorganic synthesis.
Textile and Dye Industry: Utilized in dyeing and printing processes.
Electronics: Involved in etching processes for printed circuit boards.
Pigment and Colorant: Occasionally used for its color properties in ceramics and glasses.
Safety
Signal Word: Danger
H290 (10.4%): May be corrosive to metals [Warning Corrosive to Metals]
H302+H312 (26.9%): Harmful if swallowed or in contact with skin [Warning Acute toxicity, oral; acute toxicity, dermal]
H302 (94.4%): Harmful if swallowed [Warning Acute toxicity, oral]
H312 (84.7%): Harmful in contact with skin [Warning Acute toxicity, dermal]
H315 (98%): Causes skin irritation [Warning Skin corrosion/irritation]
H318 (85.6%): Causes serious eye damage [Danger Serious eye damage/eye irritation]
H319 (12.4%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
H400 (92%): Very toxic to aquatic life [Warning Hazardous to the aquatic environment, acute hazard]
H410 (55.3%): Very toxic to aquatic life with long lasting effects [Warning Hazardous to the aquatic environment, long-term hazard]
H411 (62.5%): Toxic to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard]
P234, P264, P264+P265, P270, P273, P280, P301+P317, P302+P352, P305+P351+P338, P305+P354+P338, P317, P321, P330, P332+P317, P337+P317, P362+P364, P390, P391, P406, and P501
Handling and Storage
Store in a tightly sealed container in a dry, cool, and well-ventilated place. Keep away from moisture, acids, and incompatible materials such as reducing agents. Use appropriate PPE when handling.