Tellurium dichloride is a chloride of tellurium with the chemical formula TeCl2.
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Properties | |
Cl2Te | |
Molar mass | 198.50 g·mol−1 |
Appearance | black solid[1] |
Density | 6.9 g·cm−3[1] |
Melting point | 208 °C[1] |
Boiling point | 328 °C[1] |
reacts[1] | |
Solubility | reacts with diethyl ether, insoluble in tetrachloromethane[1] |
Related compounds | |
Other anions
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Ditellurium bromide, Te2Br |
Other cations
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Dichlorine monoxide, OCl2 Sulfur dichloride, SCl2 Selenium dichloride, SeCl2 Polonium dichloride, PoCl2 |
Related compounds
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Tritellurium dichloride, Te3Cl2 Tellurium tetrachloride, TeCl4 |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Tellurium dichloride can be produced by reacting tellurium with difluorodichloromethane.[2][3]
It can also be produced by the comproportionation of tellurium and tellurium tetrachloride.[4]
Tellurium dichloride is a black solid that reacts with water. It will melt into a black liquid and vapourize into a purple gas.[1][5] The gas consists of monomeric TeCl2 molecules with Te–Cl bond lengths of 2.329 Å and a Cl–Te–Cl bond angle of 97.0°.[5]
Tellurium dichloride reacts with barium chloride in water to form barium tellurite.