Synthesis of sulfuryl chloride

Preparation of sulfuryl chloride

Preparation of sulfuryl chloride from sulfur dioxide and chlorine in the present of camphor as catalyst

Preparation of sulfuryl chloride

Preparation of sulfuryl chloride

To the round bottom flask fitted with a reflux condenser and with two gas inlet tubes for sulfur dioxide and chlorine 10 g camphor is placed. The reaction flask is cooled with iced water while a current of sulfur dioxide, dried by means of sulfuric acid, is passed in. The gas is rapidly absorbed by the camphor, and when the content becomes liquid the sulfur dioxide gas is discontinued. To the reaction a current of dry chlorine bubbled through. When the chlorine is no longer absorbed again sulfur dioxide is introduced and this cycle is continued until the flask contains 30-40 ml liquid. For the further reaction both gases are passed in together, with external cooling, and when sufficient amount of sulfuryl chloride is obtained, the chlorine and sulfur dioxide current is stopped and sulfuryl chloride distilled, collecting the fraction passing over between 68° to 70° C, which consists of sulfuryl chloride. Sulfuryl chloride is a colorless liquid boiling at 69.2° C and melting at — 54.1° C

The war gases chemistry and analysis, by M. Sartory, 258, 1939

Preparation of sulfuryl chloride from sulfur dioxide and chlorine in the present of activated carbon as catalyst

Before the synthesis activated carbon must be dried under vacuum (10-2 mm of Hg) by heating in glass tube with burner flame for 40-50 minutes. Round bottom flask fitted with a reflux condenser and with two gas inlet tubes for sulfur dioxide and chlorine.

A glass apparatus for the preparation of sulfuryl chloride

A glass apparatus for the preparation of sulfuryl chloride

The inside of the reflux condenser is filled with activated carbon to about half of the volume. The steady stream of dry chlorine and sulfur dioxide in is passed through the system. After some sulfuryl chloride is collected in the round bottom flask the cold water is slowly passed through the reflux condenser. As the reaction proceeds sulfuryl chloride collectes in the flask. For the purification of sulfuryl chloride distillation under atmospheric pressure is performed collecting the fraction passing over between 68-70 °C.

The war gases chemistry and analysis, by M. Sartory, 259, 1939

Preparation of sulfuryl chloride by thermal decomposition of chlorosulfonic acid

Preparation of sulfuryl chloride by thermal decomposition of chlorosulfonic acid

Preparation of sulfuryl chloride by thermal decomposition of chlorosulfonic acid

One gram of mercury is added to 100 g of chlorosulfonic acid contained in an all-glass apparatus consisting of a flask, a short packed column, a water-cooled condenser, and a receiver protected from moisture. The mixture is gently refluxed for 2-3 hours so that the temperature at the top of the column does not exceed 70°C. As indicated by the equation, the pure colorless product collects in the receiver in almost theoretical yield. If decomposition of the acid is carried out for 20 hours at 200-210°G in a sealed tube without the catalyst, the yield drops to 40%.

Sulfuryl chloride is slowly decomposed into the starting materials by direct sunlight. When mixed with cold water, the oily drops of chloride disappear slowly, with hydrolysis, to sulfuric and hydrochloric acids. By shaking the com­pound with water and ice, it forms a hydrate, which is stable at 0°C. Alkalies react violently with the material to form sulfates and chlorides. Sulfuryl chloride is soluble in numerous inert organic solvents.

Inorganic laboratory preparations, by G. G. Schlessinger, 123-122, 1962

IUPAC Name

sulfuryl dichloride

InChI

InChI=1S/Cl2O2S/c1-5(2,3)4

InChI Key

YBBRCQOCSYXUOC-UHFFFAOYSA-N

Canonical SMILES

O=S(=O)(Cl)Cl

MeSH Synonyms

ClSO2Cl, sulfonyl chloride

Depositor-Supplied Synonyms

SULFURYL CHLORIDE, Sulfuryl dichloride, Sulfonyl chloride, Sulphuryl dichloride, Sulphuryl chloride, Sulfonyl dichloride, Sulfuric dichloride, 7791-25-5, Sulfuric oxychloride, Sulfurylchlorid, sulfuroyl dichloride, Caswell No. 816, SO2Cl2, Sulfuryl chloride solution, Sulfuryl chloride (SO2Cl2), Sulfur oxychloride (SO2Cl2), HSDB 827, CHEBI:29291, EINECS 232-245-6, UN1834, EPA Pesticide Chemical Code 078002, chlorosulfone, chlorosulphone, dichlorosulfone, sulfonylchloride, sulfurylchloride, sulfuryldichlorid, sulphonylchloride, sulphuryichloride, sulphurylchloride, sulphonyl chloride, ACMC-20ajmc, dichloridodioxidosulfur, chlorosulfonyl chloride, PubChem24159, sulfur dichloride dioxide, SCl2O2, AC1L2NKZ, AC1Q3VQR, AC1Q3VQS, AC1Q3VQT, DSSTox_CID_9707, DSSTox_RID_78815, UNII-JD26K0R3J1, [SCl2O2], DSSTox_GSID_29707, KSC377M7P, 157767_ALDRICH, 278505_ALDRICH, 320528_ALDRICH, JD26K0R3J1, CHEMBL3186735, CTK2H7677, MolPort-001-790-559, YBBRCQOCSYXUOC-UHFFFAOYSA-N, LTBB002121, 157767_SIAL, 320528_SIAL, Tox21_200484, AKOS015856722, RP20176, RTR-025001, NCGC00248654-01, NCGC00258038-01, Sulfuryl chloride [UN1834] [Corrosive], CAS-7791-25-5, LS-148266, Sulfuryl chloride [UN1834] [Corrosive], TL8005340, TR-025001, FT-0689519, S0569, 3B4-1952, I14-101684

Removed Synonyms

Sulfuric chloride, Chlorosulfuric acid, CID24648

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