Copper Chloride Dihydrate

Synonyms: Cupric chloride dihydrate; cupric chloride; copper(ii) chloride dihydrate; copper(2+) dichloride; copper(2+) chloride hydrate (1:2:2); dichlorocopper dihydrate; dichlorocopper hydrate;

CAS No.: 10125-13-0

Formula: H2Cl2CuO

M.W.: 152.4673


Blue green crystalline powder

Uses: Copper chloride dihydrate has various applications, including:

  1. Laboratory reagent: It is commonly used in laboratories as a source of copper ions and as a catalyst in chemical reactions.
  2. Metal coloring and patination: Copper chloride dihydrate is used in art and industry to create decorative patinas on copper, bronze, and brass surfaces. It can produce a range of colors, from green to blue, depending on the method of application.
  3. Electroplating: It is used in the electroplating industry for copper plating processes.
  4. Pyrotechnics: Copper chloride dihydrate is employed in pyrotechnics to produce blue or green flames and colors in fireworks.
  5. Wood preservative: It is sometimes used as a wood preservative to protect against fungi and insects.


Stored in cool and dry warehouse; Keep away from flame and heat.

NO Item Specification
1 Assay as  CuCl2 2H2O 98.0 %  m/m min ≥99%
2 Appearance Green to Bluish-Green Green to Bluish-Green
3 Total Copper as Cu 36.5 %  m/m min ≥36.9%
4 Copper Nitrate as Cu(NO3)2 0.50 % m/m max ≤0.1%
5 Moisture 4.0 % m/m max 3.0 % m/m max
6 Free HNO3 0.10 % m/m max 0.05 % m/m max
7 Iron as “Fe” 0.01 % m/m max ≤0.005%
8  pH 5% Solution 3.0- 4.0 3.0- 4.0
9 Matter insoluble in H2O 0.05 % m/m max ≤0.01%


Packaging Sizes

25kg net. Double plastic bags lined plastic woven sack.