Copper(II) chloride dihydrate Property

Melting point:

100 °C (dec.)(lit.)

Density 

2.54

vapor density 

>1 (vs air)

storage temp. 

Store at +5°C to +30°C.

solubility 

757g/l

form 

Solid

Specific Gravity

2.54

color 

White

PH

3.0-3.8 (50g/l, H2O, 20℃)

Water Solubility 

1150 g/L

Sensitive 

Air Sensitive & Hygroscopic

Merck 

14,2633

Exposure limits

ACGIH: TWA 1 mg/m3
NIOSH: IDLH 100 mg/m3; TWA 1 mg/m3

Stability:

Reacts violently with potassium, sodium. Contact with acetylene can form shock-sensitive acetylides. Hygroscopic - incompatible with moisture.

InChIKey

ORTQZVOHEJQUHG-UHFFFAOYSA-L

LogP

-1.380 (est)

CAS DataBase Reference

10125-13-0(CAS DataBase Reference)

EPA Substance Registry System

Cupric chloride dihydrate (10125-13-0)

Safety

Hazard Codes 

Xn,N

Risk Statements 

22-36/37/38-50/53-50-41-38-21/22

Safety Statements 

26-60-61-36-36/37/39

RIDADR 

UN 2802 8/PG 3

WGK Germany 

3

RTECS 

GL7030000

TSCA 

Yes

HazardClass 

8

PackingGroup 

III

HS Code 

28273990

Toxicity

LD50 orally in Rabbit: 584 mg/kg

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H315Causes skin irritation

H318Causes serious eye damage

H410Very toxic to aquatic life with long lasting effects

Precautionary statements

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P273Avoid release to the environment.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

Copper(II) chloride dihydrate Chemical Properties,Usage,Production

Description

Copper (II) chloride dihydrate is used in the preparation of copper oxychloride and as a catalyst in many organic chlorination reactions such as vinyl chloride and 1,2-dichloroethane. Copper chloride dihydrate may be also used as catalyst to cleave tetrahydropyranyl (THP) ethers and t-butyldimethylsilyl (TBDMS) ethers and to chemoselectively hydrolyze semicarbazones to carbonyl compounds. Solution of copper (II) chloride is used for plating on aluminum and for tinting germanium and tin.

Uses

Copper(II) chloride is used as a mordant in dyeing and printing of fabrics; as an ingredient of isomerization and cracking catalysts; and as a desulfurizing and deodorizing agent in petroleum industry.
Other important applications are in copper plating of aluminum; preparation of copper standard solutions; test for molybdenum; in tinting-baths for iron and tin; in pigments for ceramics and glasses; as a fixer and desensitizer reagent in photography; in mercury extraction from ores; in laundry-marking and invisible inks; and in manufacture of several copper salts.

Preparation

Copper(II) chloride may be synthesized by heating elemental copper with chlorine:
Cu + Cl2 CuCl2
Alternatively, it may be prepared by treating copper carbonate with hydrochloric acid followed by crystallization:
CuCO3 + 2HCl → CuCl2 + CO2 + H2O
In the above preparation, the hydrate of the salt crystallizes, precipitates, and may be dehydrated by heating under vacuum.

References

[1] H. Wayne Richardson, Handbook of Copper Compounds and Applications, 1997
[2] Ram N. Ram and Kiran Varsha, Regeneration of carbonyl compounds from semicarbazones by copper (II) chloride dihydrate, Tetrahedron Letters, 1991, vol. 32, 5829-5832
[3] Z. P. Tan, L. Wang, J. Bo. Wang, Deprotection of t- Butyldimethylsiloxy (TBDMS) Protecting Group with Catalytic Copper (II) Chloride Dihydrate, Chinese Chemical Letters, 2000, vol. 11, 753-756

Chemical Properties

Moist blue crystals.

Uses

Supplement (trace mineral).

Uses

Copper(II) chloride (CuCl2) or cupric chloride, is a brownish-yellow hygroscopic powder, or it may be formed as green deliquescent crystals. It is used in the dyeing and printing of textiles, as a disinfectant, as red pigment in the glass and ceramic industries, and for green-colored pyrotechnics, wood preservative, fungicide, deodorizer, water purification, feed additive, and electroplating baths.

Uses

Copper(II) chloride dihydrate has been used as a positive control in dispersion of zebrafish embryo. It has also been used for the preparation of trace metals mixture.

Definition

ChEBI: Copper(II) chloride dihydrate is a hydrate that is the dihydrate form of copper(II) chloride. It occurs naturally as the mineral eriochalcite. It has a role as an EC 5.3.3.5 (cholestenol Delta-isomerase) inhibitor. It is a hydrate and a halide mineral. It contains a copper(II) chloride.