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Sulfur dichloride is the chemical compound with the formula SCl2. This cherry-red liquid is the simplest and one of two common sulfur chlorides. It is used as a precursor to organosulfur compounds.
Additional recommended knowledge
Chlorination of sulfur
SCl2 is produced by the chlorination of either elemental sulfur. The process occurs in a series of steps, some of which are:
The addition of Cl2 to S2Cl2 has been proposed to proceed via a mixed valence intermediate Cl3S-SCl. SCl2 undergoes even further chlorination to give SCl4, but this species is unstable at near room temperature. It is likely that several SxCl2 exist where x > 2.
Use of SCl2 in chemical synthesis
SCl2 is also a precursor to several inorganic sulfur compounds. Treatment with fluoride salts gives SF4. Reaction with ammonia affords sulfur nitrides related to S4N4. With H2S, SCl2 reacts to give "higher" sulfanes such as S3H2.
SCl2 hydrolyzes with release of HCl. Old samples contain Cl2.
|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Sulfur_dichloride". A list of authors is available in Wikipedia.|