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Cadmium hydroxide
Chemical compound / From Wikipedia, the free encyclopedia
Cadmium hydroxide is an inorganic compound with the formula Cd(OH)2. It is a white crystalline ionic compound that is a key component of nickel–cadmium battery.[5]
Quick Facts Names, Identifiers ...
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Names | |
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IUPAC name
Cadmium(II) hydroxide | |
Identifiers | |
3D model (JSmol) |
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ChemSpider |
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ECHA InfoCard | 100.040.137 ![]() |
PubChem CID |
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UNII | |
CompTox Dashboard (EPA) |
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Properties | |
Cd(OH)2 | |
Molar mass | 146.43 g/mol |
Appearance | white crystals |
Density | 4.79 g/cm3 |
Melting point | 130 °C (266 °F; 403 K) |
Boiling point | 300 °C (572 °F; 573 K) (decomposes) |
0.026 g/100 mL | |
Solubility product (Ksp) |
7.2×10−15 [1] |
Solubility | soluble in dilute acids |
Acidity (pKa) | 10[2] |
-41.0·10−6 cm3/mol | |
Structure | |
hexagonal | |
Thermochemistry | |
Std molar entropy (S⦵298) |
96 J·mol−1·K−1[3] |
Std enthalpy of formation (ΔfH⦵298) |
−561 kJ·mol−1[3] |
Hazards | |
NIOSH (US health exposure limits): | |
PEL (Permissible) |
[1910.1027] TWA 0.005 mg/m3 (as Cd)[4] |
REL (Recommended) |
Ca[4] |
IDLH (Immediate danger) |
Ca [9 mg/m3 (as Cd)][4] |
Related compounds | |
Other anions |
Cadmium chloride, Cadmium iodide |
Other cations |
Zinc hydroxide, Calcium hydroxide, Magnesium hydroxide |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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