CADMIUM HYDROXIDE Chemical Properties

Melting point:

232 °C(lit.)

Density 

4.79 g/mL at 25 °C(lit.)

solubility 

Soluble in dilute acids, NH{4}Cl solutions

form 

Powder

Specific Gravity

4.79

color 

white trigonal or hexagonal, hexane crystals, crystalline

PH

9.36(1 mM solution);9.36(10 mM solution);9.36(100 mM solution)

Water Solubility 

Soluble in dilute acids. Slightly soluble in water; 0.026 g/100 mL.

Sensitive 

Air Sensitive

Merck 

14,1620

Solubility Product Constant (Ksp)

pKsp: 14.14

Exposure limits

ACGIH: TWA 0.01 mg/m3; TWA 0.002 mg/m3
NIOSH: IDLH 9 mg/m3

CAS DataBase Reference

21041-95-2(CAS DataBase Reference)

EPA Substance Registry System

Cadmium hydroxide (Cd(OH)2) (21041-95-2)

Safety Information

Hazard Codes 

Xn,N,T+

Risk Statements 

20/21/22-50/53-68-62-48/23/25-26-63-45

Safety Statements 

60-61-45-53

RIDADR 

UN 2570 6.1/PG 3

WGK Germany 

3

RTECS 

EV1260000

TSCA 

Yes

HazardClass 

6.1

PackingGroup 

III

MSDS

• Language:English Provider:SigmaAldrich
• Language:English Provider:ALFA

CADMIUM HYDROXIDE Usage And Synthesis

Chemical Properties

White powder

Physical properties

White powder or crystal; trigonal or hexagonal crystal system; density 4.79 g/cm³; decomposes slowly at 130°C; dehydration completes at 300°C; insoluble in water (2.6 mg/L at 20°C); soluble in dilute acids.

Uses

Cadmium hydroxide is used to prepare negative electrodes for cadmium-nickel batteries. It is a useful in biochemical for proteomics research. It may be used in cadmium plating and cadmium salt.

Uses

In storage battery electrodes.

Preparation

Cadmium hydroxide may be precipitated by adding any cadmium salt solution to a boiling solution of caustic soda or caustic potash:
CdCl₂ + 2NaOH → Cd(OH)₂ + 2NaCl.

CADMIUM HYDROXIDE(21041-95-2)Related Product Information

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