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ChemicalBook CAS DataBase List Disulfur dichloride

Disulfur dichloride synthesis

8synthesis methods
Disulfur dichloride is prepared as an orange liquid by passing chlorine gas through molten sulfur. If excess chlorine is passed and in the presence of a trace FeCl3 or iodine as catalyst, an equilibrium mixture of about 85% dichloride, SCl2 , and 15% S2Cl2 is obtained. The dichloride dissociates to Disulfur dichloride:
2SCl2 ? S2Cl2 + Cl2
Disulfur dichloride is separated by fractional distillation.
-

Yield:-

Reaction Conditions:

with sulfurbyproducts: thiophosgene, tricholoromethyl sulfur chloride; at 220°C;

References:

Klason, P. [Chemische Berichte,1887,vol. 20,p. 2376 - 2383]

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