Salts & Minerals
REACH
Cupric chloride
CAS Number
7447-39-4
EC Number
231-210-2
What is Cupric chloride?
Cupric chloride (CAS 7447-39-4), also known commercially as CuCl2, is an inorganic copper salt used as a catalyst, biocide, and metal surface treatment agent.
Where is Cupric chloride used?
- Chemical synthesis and petrochemical processing: catalyst or catalyst precursor
- Chlorination reactions and oxidative coupling processes
- Textile and leather: mordant that fixes dyes onto fiber substrates, improving color fastness
- Water treatment: biocidal agent controlling algae and microbial growth in industrial water systems
- Mining and hydrometallurgy: copper etching and metal recovery
- In printed circuit board manufacturing it enables controlled copper dissolution.
Commercial specifications
- Packaging from small laboratory quantities to bulk fiber drums or supersacks
Other Names (Synonyms)
cupric dichloride|CuCl2|copper(2+) chloride|copper dichloride|copper chloride|copper bichloride|coclor|copper(II) chloride
What are the physical properties of Cupric chloride?
Melting Point 498 °C
Boiling Point 993 °C
Density 3.39 g/cm³ @ Temp: 25 °C
Appearance Copper chloride is a brownish-yellow powder.
Color Yellow-brown
Form powder
Water Solubility 620 g/L (20 ºC)
Vapor Pressure 0Pa at 25℃
pH 3.5 (50g/l, H2O, 20℃)
How is Cupric chloride classified and handled safely? Learn More
Danger
GHS05· Corrosive GHS07· Irritant GHS09· Environmental Hazard GHS06· Toxic GHS08· Health Hazard
Hazard Statements
H290 May be corrosive to metals
H301 Toxic if swallowed
H302 Harmful if swallowed
H312 Harmful in contact with skin
Precautionary Statements
P203 Obtain, consult and follow expert instructions for use.
P234 Keep only in original packaging.
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P264 Wash … thoroughly after handling.
Which trade and regulatory codes apply to Cupric chloride?
HS Code 28273990
UN Number 3264
ADR Class 8
Packing Group III
WGK (Germany) 2