Cadmium acetate
Chemical compound From Wikipedia, the free encyclopedia
Cadmium acetate is the chemical compound with the formula Cd(O2CCH3)2(H2O)2. The compound is marketed both as the anhydrous form and as a dihydrate, both of which are white or colorless. Only the dihydrate has been verified by X-ray crystallography.
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Names | |
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IUPAC name
Cadmium acetate | |
Other names
Cadmium diacetate | |
Identifiers | |
3D model (JSmol) |
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ChemSpider | |
ECHA InfoCard | 100.008.049 |
EC Number |
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PubChem CID |
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RTECS number |
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UNII |
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UN number | 2570 |
CompTox Dashboard (EPA) |
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Properties | |
Cd(CH3COO)2 (anhydrous) Cd(CH3COO)2·2H2O (dihydrate) | |
Molar mass | 230.500 g/mol (anhydrous) 266.529 g/mol (dihydrate) |
Appearance | colorless crystals (anhydrous) white crystals (dihydrate) |
Odor | acetic acid |
Density | 2.341 g/cm3 (anhydrous) 2.01 g/cm3 (dihydrate) |
Melting point |
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soluble (anhydrous), very soluble (dihydrate) | |
Solubility | soluble in methanol, ethanol (anhydrous) soluble in ethanol (dihydrate) |
−83.7·10−6 cm3/mol | |
Structure | |
monoclinic | |
Hazards | |
GHS labelling: | |
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Warning | |
H302, H312, H332, H410 | |
P261, P264, P270, P271, P273, P280, P301+P312, P302+P352, P304+P312, P304+P340, P312, P322, P330, P363, P391, P501 | |
NFPA 704 (fire diamond) | |
NIOSH (US health exposure limits): | |
PEL (Permissible) |
[1910.1027] TWA 0.005 mg/m3 (as Cd)[2] |
REL (Recommended) |
Ca[2] |
IDLH (Immediate danger) |
Ca [9 mg/m3 (as Cd)][2] |
Related compounds | |
Other anions |
Cadmium fluoride Cadmium chloride Cadmium bromide Cadmium iodide |
Other cations |
Zinc acetate Mercury(II) acetate Silver acetate |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Preparation, reactions, and uses
It forms by treating cadmium oxide with acetic acid:[3][4]
- CdO + 2 CH3CO2H + H2O → Cd(O2CCH3)2(H2O)2
It can also be prepared by treating cadmium nitrate with acetic anhydride.[5]
Cadmium acetate has few applications. By reaction with trioctylphosphine selenide, it has often been used as a precursor to cadmium selenide and related semiconductors.[6]
Structure of the dihydrate

Unlike the coordination geometry of zinc in zinc diacetate dihydrate, cadmium is seven coordinate in Cd(O2CCH3)2(H2O)2.[7] It is a coordination polymer, featuring acetate ligands interconnecting cadmium centers.
Safety
Cadmium compounds are considered Group 1 carcinogens by the IARC.
References
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