Names | |
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IUPAC name
Cadmium(II) iodide
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Other names
Cadmium diiodide
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Identifiers | |
3D model (JSmol)
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ChemSpider | |
ECHA InfoCard | 100.029.294 |
EC Number |
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PubChem CID
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UNII | |
CompTox Dashboard (EPA)
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Properties | |
CdI2 | |
Molar mass | 366.22 g/mol |
Appearance | white to pale yellow crystals |
Density | 5.640 g/cm3, solid |
Melting point | 387 °C (729 °F; 660 K) |
Boiling point | 742 °C (1,368 °F; 1,015 K) |
787 g/L (0 °C) 847 g/L (20 °C) 1250 g/L (100 °C) | |
Solubility | soluble in ethanol, acetone, ether and ammonia |
-117.2·10−6 cm3/mol | |
Structure | |
Trigonal, hP3, space group P3m1, No. 164 | |
octahedral | |
Hazards | |
GHS labelling: | |
Danger | |
H301, H331, H351, H373, H410 | |
P260, P280, P301+P330+P331, P304+P340, P310, P311, P403+P233 | |
NFPA 704 (fire diamond) | |
NIOSH (US health exposure limits): | |
PEL (Permissible)
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[1910.1027] TWA 0.005 mg/m3 (as Cd)[1] |
REL (Recommended)
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Ca[1] |
IDLH (Immediate danger)
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Ca [9 mg/m3 (as Cd)][1] |
Related compounds | |
Other anions
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cadmium fluoride cadmium chloride cadmium bromide |
Other cations
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zinc iodide mercury(II) iodide |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Cadmium iodide is an inorganic compound with the formula CdI2. It is a white hygroscopic solid. It also can be obtained as a mono- and tetrahydrate.[2] It has few applications. It is notable for its crystal structure, which is typical for compounds of the form MX2 with strong polarization effects.