Cadmium hydroxide (Cd(OH)2)

CAS Number: 21041-95-2

Molecular Formula: CdH4O2

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About Cadmium hydroxide (Cd(OH)2)

Cadmium hydroxide (CAS 21041-95-2) is a critical inorganic precursor in the high purity fine chemicals sector, predominantly utilized in the United States for the production of negative electrodes in high-performance nickel-cadmium batteries and as a precursor for specialized cadmium salts. Cadmium dihydroxide 21041-95...

Synonyms

Cadmium hydroxide (Cd(OH)2)
cadmium;dihydrate
MFCD00015995
dihydroxycadmium
Cadmium hydroxide, Cd 75% min

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Cadmium hydroxide (Cd(OH)2) Specifications

CAS Number

21041-95-2

Molecular Formula

CdH4O2

Molecular Weight

146.43 g/mol

IUPAC Name

cadmium;dihydrate

Canonical SMILES

O.O.[Cd]

InChI Key

XIYPBSADJSJKMF-UHFFFAOYSA-N

InChI

InChI=1S/Cd.2H2O/h;2*1H2

EINECS Number

244-168-5

MDL Number

MFCD00015995

HSN No

28259020

CAS Number

21041-95-2

Molecular Formula

CdH4O2

Molecular Weight

146.43 g/mol

IUPAC Name

cadmium;dihydrate

Canonical SMILES

O.O.[Cd]

InChI Key

XIYPBSADJSJKMF-UHFFFAOYSA-N

InChI

InChI=1S/Cd.2H2O/h;2*1H2

EINECS Number

244-168-5

MDL Number

MFCD00015995

HSN No

28259020

Molecular Weight

146.43 g/mol

Melting Point

130°C

Boiling Point

300 °C (decomposes)

Freezing point

232°C

Flash Point

Nonflammable

Density

4.79 g/cm3

pKa

PSA

2 Å²

Average mass

146.43 g/mol

Monoisotopic mass

147.908844 Da

Molar mass

146.43 g/mol

Precautionary Statement Codes

P203, P260, P264, P270, P271, P273, P280, P301+P316, P304+P340, P308+P313, P316, P318, P321, P330, P391, P405, and P501

Hazard Classes and Categories

Acute Tox. 2 (100%) Acute Tox. 3 (100%)

Energy Storage Systems

Cadmium hydroxide is a fundamental component in the fabrication of nickel-cadmium (NiCd) and silver-cadmium storage battery anodes, providing high energy density and rechargeability for portable electronics and industrial power tools

Surface Engineering and Coating

The compound is extensively used in cadmium plating and electro-galvanizing processes to enhance the corrosion resistance of metallic substrates in the automotive and electronics sectors

Chemical Manufacturing

It serves as a primary precursor for the synthesis of other cadmium salts, cadmium oxide, and specialized catalysts such as cadmium-calcium-phosphate used in industrial chemical transformations.