Carbon tetraiodide
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Carbon tetraiodide is a tetrahalomethane with the molecular formula . Being bright red, it is a relatively rare example of a highly colored methane derivative. It is only 2.3% by weight carbon, although other methane derivatives are known with still less carbon.
Quick Facts Names, Identifiers ...
Carbon tetraiodide crystals (left) Solution in Et2O (right) | |||
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Names | |||
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Preferred IUPAC name
Tetraiodomethane[1] | |||
Identifiers | |||
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3D model (JSmol) |
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1733108 | |||
ChemSpider |
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ECHA InfoCard | 100.007.335 | ||
EC Number |
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PubChem CID |
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RTECS number |
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UNII | |||
CompTox Dashboard (EPA) |
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Properties | |||
CI4 | |||
Molar mass | 519.629 g·mol−1 | ||
Appearance | Dark violet crystals | ||
Density | 4.32 g mL−1 | ||
-136·10−6 cm3/mol | |||
Structure | |||
Tetragonal | |||
Tetrahedral | |||
0 D | |||
Thermochemistry | |||
Heat capacity (C) |
0.500 J K−1 g−1 | ||
Std enthalpy of formation (ΔfH⦵298) |
384.0–400.4 kJ mol−1 | ||
Std enthalpy of combustion (ΔcH⦵298) |
−794.4–−778.4 kJ mol−1 | ||
Hazards | |||
Occupational safety and health (OHS/OSH): | |||
Main hazards |
toxic | ||
GHS labelling: | |||
Warning | |||
H315, H319, H335 | |||
P261, P305+P351+P338 | |||
Related compounds | |||
Other anions |
Carbon tetrafluoride Carbon tetrachloride Carbon tetrabromide | ||
Other cations |
Silicon tetraiodide Germanium tetraiodide Tin(IV) iodide | ||
Related alkanes |
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Related compounds |
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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