Selenium oxydichloride

• Selenium oxychloride
• Seleninyldichlorid
• Selenoxiddichlorid
• Selendichloridoxid
• Selenylchlorid

Yellow to yellow-green liquid with odor chlorartigem

Liquid

2.42 g · cm -3

8.5 ° C

176.4 ° C

0.4 mbar ( 20 ° C)

Violent decomposition in water

1.651 (20 ° C)

Risk

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Selenoxidchlorid is an inorganic chemical compound of selenium from the group of oxide chlorides. It is the chloride of selenious acid ( H2SeO3 ).

Production and representation

Selenoxidchlorid can be obtained by a two-step reaction of selenium dioxide with hydrogen chloride.

Alternatively, selenium dioxide may be reacted at 50 ° C with thionyl chloride Selenoxidchlorid.

Properties

Selenoxidchlorid is a non-flammable, low volatile, pale yellow hygroscopic, fuming in moist air, liquid, which decomposes in water to form hydrogen chloride and selenious acid and miscible with carbon tetrachloride, trichloromethane, carbon disulfide, benzene and toluene. To form at temperatures below 8 ° C, colorless crystals.

Use

Selenoxidchlorid is sometimes used because of its solvent power for almost all substances as solvents.