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Disulfur dichloride

CAS Number
10025-67-9
EC Number
233-036-2
Chemical Formula
Cl2S2
Molecular Weight
135.0 g/mol

Description

Disulfur dichloride (CAS 10025-67-9 ), also known as Sulphur Monochloride or S2Cl2, is a reactive sulfur chloride compound used industrially as a cross-linking agent and chemical intermediate. It functions primarily as a vulcanizing agent in rubber processing and as a precursor in synthesis and catalytic applications. In rubber and tire manufacturing, S2Cl2 cold-vulcanizes natural and synthetic rubber. This process occurs at low temperatures, enabling processing of heat-sensitive articles such as thin-walled goods and surgical items. In agrochemical production, it serves as an intermediate in synthesizing sulfur-containing pesticides. It is also used for crop protection compounds. Mining and metallurgical operations use it in the extraction and refining of certain metals, particularly in chlorination-based processes for recovering platinum group metals. It also functions as a reagent and catalyst precursor in organic synthesis, facilitating the introduction of sulfur and chlorine functionalities into target molecules. This makes it a versatile tool for chemical plants. Disulfur dichloride is supplied as an amber to yellow fuming liquid, typically in drum or IBC packaging suited to its highly reactive nature. It is available in technical grade for various industrial uses. Purity specifications commonly range from 95% to 98% depending on the intended application. Buyers should confirm stabilizer content and moisture levels, as these affect reactivity and shelf life in downstream processes. Contact us for supply of Disulfur dichloride Request Quote

Other Names (Synonyms)

Sulphur Mono Chloride | chlorosulfanyl thiohypochlorite | Sulfur monochloride | S2Cl2

Key Technical Features

  • High Purity Grade standard
  • Consistent Batch Quality
  • Full Regulatory & REACH Support
  • Global Logistics Network enabled

Physical Properties

Melting Point-77 °C
Boiling Point135.6 °C
Density1.6885 g/cm³ @ Temp: 15.5 °C
Flash Point>130°C
AppearanceSulfur chloride is a fuming, oily liquid with a yellowish-red to amber color and a suffocating odor. It has an added hazard since it oxidizes and hydrolyzes to sulfur dioxide and hydrogen chloride.
Coloryellow-red oily liquid
Formyellow-red oily liquid
Water Solubilityreacts
Vapor Pressure6.8 mm Hg ( 20 °C)
Refractive Indexn 20/D 1.658(lit.)

Safety & Handling

Danger
GHS05· CorrosiveGHS06· ToxicGHS09· EnvironmentGHS07· IrritantGHS08· Health Hazard

Hazard Statements

H301
H301
H314
H314
H318
H318
H330
H330
H331
H331
H332
H332
H335
H335
H371
H371
H400
H400H301+
H331H301+H331

Precautionary Statements

P260
P260
P261
P261
P264
P264
P270
P270
P271
P271
P273
P273
P280
P280
P284
P284
P316
P316
P317
P317
P319
P319
P320
P320
P321
P321
P330
P330
P363
P363
P391
P391
P405
P405
P501
P501
P265
P265
P316
P316
P340
P340
P316
P316
P233
P233
P331
P331
P354
P354
P338

Trade & Regulatory

HS Code28121091
UN Number3390
ADR Class6.1
Packing GroupI
Storage Class6.1C - Combustible acute toxic Cat.3 toxic compounds or compounds which causing chronic effects
WGK (Germany)3