Product Identification

Product Name

Sulfur chloride

Synonyms

Chloride of sulfur
Chlorosulfane
Chlorosulfanyl thiohypochlorite
Disulfur dichloride
Sulfur chloride
Sulfur subchloride

CAS

10025-67-9

Formula

Cl2S2

Molecular Weight

135.03

EINECS

233-036-2

RTECS

WS4300000

RTECS Class

Other

Merck

12,9143

Beilstein/Gmelin

1878 (G)

EC Index Number

016-012-00-4

EC Class

Reacts violently with water; Toxic; Harmful; Contact with water liberates toxic gas; Corrosive; Dangerous for the Environment

Physical and Chemical Properties

Appearance

Yellowish to red oily, fuming liquid, penetrating odor.

Solubility in water

Decomposes

Melting Point

-76

Boiling Point

138

Vapor Pressure

7 (25 C)

Density

1.6885 g/cm3 (15.5 C)

Heat Of Vaporization

36.1 kJ/mol

Usage

Use for production of white vulcanized oils used for coating and impregnating textiles, use as natural and synthetic rubber extenders and modifying agents in erasers, and extruded rubber goods, use with unsaturated fatty acids in production of additives to extreme pressure lubricants and cutting oils, use as a cross-linking catalyst in polymer technology, use for treatment of drying oils for production of varnishes, inks, paints, and cements, use as a solvent for sulfur and sulfur compound.

Vapor Density

4.66

Saturation Concentration

8900 ppm (0.89%) at 20 C (calculated)

Odor threshold

7.0 mg/m3

Refractive Index

1.67 (20 C)

First Aid Measures

Ingestion

The possible benefit of early removal of some ingested material by cautious gastric lavage must be weighed against potential complications of bleeding or perforation. Activated charcoal activated charcoal binds most toxic agents and can decrease their systemic absorption if administered soon after ingestion. Activated charcoal: administer charcoal as a slurry (240 ml water/30 g charcoal). Usual dose: 25 to 100 g in adults/adolescents.

Inhalation

Move patient to fresh air. Monitor for respiratory distress. If cough or difficulty breathing develops, evaluate for respiratory tract irritation, bronchitis, or pneumonitis. Administer oxygen and assist ventilation as required. Treat bronchospasm with beta2 agonist and corticosteroid aerosols.

Skin

Remove and isolate contaminated clothing and shoes. In case of contact with substance, immediately flush with running water for at least 20 minutes. For minor skin contact, avoid spreading material on unaffected skin.

Eyes

Irrigate exposed eyes with copious amounts of tepid water for at least 15 minutes. If irritation, pain, swelling, lacrimation, or photophobia persist, the patient should be seen in a health care facility.

Handling and Storage

Storage

Keep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition sources and untrained individuals. Secure and label area. Protect containers/cylinders from physical damage.

Handling

All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.

Hazards Identification

Inhalation

Changes in breathing pattern, irritation, changes in pulmonary function, corrosion and edema of the respiratory tract, chronic bronchitis and noncardiogenic pulmonary edema have been observed.

Skin

Burns, ulceration, scarring, blanching, and irritation may occur.

Eyes

Dental discoloration or erosion, bleeding gums, corneal necrosis, inflammation of the eye, eye and nasal irritation, nasal ulceration, nose bleeds, throat irritation and ulceration have been observed.

Ingestion

Gastritis, burns, gastric hemorrhage, dilation, edema, necrosis, and strictures may occur.

Hazards

Substance will react with water (some violently), releasing corrosiveand/or toxic gases.

EC Risk Phrase

R 14 20 25 29 35 50

EC Safety Phrase

S 26 36/37/39 45 61

UN (DOT)

1828

Exposure Controls/Personal Protection

Personal Protection

Wear appropriate protective gloves, clothing and goggles.

Respirators

Wear positive pressure self-contained breathing apparatus (SCBA).

Exposure Effects

Shock, rapid breathing and pulse, circulatory collapse and other changes to pulse, blood pressure, and respirations may occur. Fetotoxicity, developmental abnormalities, and possible resistance to hydrogen chloride by inhalation during pregnancy have been noted. <br>No data were available on the possible effects of hydrogen chloride exposure during lactation. <br>No information about possible male reproductive effects was found in available references.

Exposure limit(s)

TLV (as ceiling values): 1 ppm; 5.5 mg/m3 (ACGIH 1996). OSHA PEL: TWA 1 ppm (6 mg/m3) NIOSH REL: C 1 ppm (6 mg/m3) NIOSH IDLH: 5 ppm

Poison Class

2

Fire Fighting Measures

Flash Point

118

Autoignition

410

Fire Fighting

Use dry chemical, dry sand, or carbon dioxide. Do not use water on material itself. If large quantities of combustibles are involved, use water in flooding quantities as spray and fog. Use water spray to knock-down vapors. Cool all affected containers with flooding quantities of water. Apply water from as far a distance as possible.

Fire Potential

Sulfur chloride is flammable liquid which gives rise to moderate fire hazard.

Accidental Release Measures

Small spills/leaks

Keep material out of water sources and sewers. Build dikes to contain flow as necessary. Use water spray to knock-down vapors. Do not use water on material itself. Neutralize spilled material with crushed limestone, soda ash, or lime. Vapor knockdown water is corrosive or toxic and should be diked for containment. Land spill: Dig a pit, pond, lagoon, holding area to contain liquid or solid material. Dike surface flow using soil, sand bags, foamed polyurethane, or foamed concrete. Absorb bulk liquid with fly ash or cement powder. Neutralize with agricultural lime (CaO), crushed limestone (CaCO3) or sodium bicarbonate (NaHCO3). Water spill: Neutralize with agricultural lime (CaO), crushed limestone (CaCO3), or sodium bicarbonate (NaHCO3). Use mechanical dredges or lifts to remove immobilized masses of pollutants and precipitates.

Stability and Reactivity

Disposal Code

24

Incompatibilities

Can react violently with oxidizing agents to form toxic gases Reacts violently with sodium peroxide, chromyl chloride, phosphorus trioxide Reacts exothermically with tin, antimony, antimony sulfide, arsenic sulfide, mercury oxide Reacts particularly violently with dimethyl sulfoxide.

Stability

Stable at ambient temperature.

Combustion Products

Toxic and corrosive fumes are evolved when heated.

Transport Information

UN Number

1828

Hazard Class

8

Packing Group

I

HS Code

2812 10 91