ICSC 1661 - SULFUR DICHLORIDE

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SULFUR DICHLORIDE	ICSC: 1661 (April 2007)
Chlorine sulfide Dichlorosulfane Monosulfur dichloride

CAS #: 10545-99-0

UN #: 1828

EC Number: 234-129-0

	ACUTE HAZARDS	PREVENTION	FIRE FIGHTING
FIRE & EXPLOSION	Not combustible. Gives off irritating or toxic fumes (or gases) in a fire. Contact with metals may evolve flammable hydrogen gas. Heating will cause rise in pressure with risk of bursting.		Use dry powder, carbon dioxide. NO water. In case of fire: keep drums, etc., cool by spraying with water. NO direct contact with water.

AVOID ALL CONTACT! IN ALL CASES CONSULT A DOCTOR!
	SYMPTOMS	PREVENTION	FIRST AID
Inhalation	Cough. Sore throat. Burning sensation. Laboured breathing.	Use ventilation, local exhaust or breathing protection.	Fresh air, rest. Half-upright position. Artificial respiration may be needed. Refer immediately for medical attention.
Skin	Redness. Pain. Serious skin burns.	Protective gloves. Protective clothing.	First rinse with plenty of water for at least 15 minutes, then remove contaminated clothes and rinse again. Refer for medical attention .
Eyes	Redness. Pain. Severe deep burns.	Wear face shield or eye protection in combination with breathing protection.	First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.
Ingestion	Burning sensation. Sore throat. Abdominal pain. Shock or collapse.	Do not eat, drink, or smoke during work.	Rinse mouth. Do NOT induce vomiting. Refer immediately for medical attention.

SPILLAGE DISPOSAL	CLASSIFICATION & LABELLING
Personal protection: gas-tight chemical protection suit including self-contained breathing apparatus. Do NOT let this chemical enter the environment. Cover the spilled material with dry inert absorbent. Carefully collect remainder in plastic containers. Then store and dispose of according to local regulations.	According to UN GHS Criteria May be corrosive to metals Causes severe skin burns and eye damage May cause damage to lungs Very toxic to aquatic life Transportation UN Classification UN Hazard Class: 8; UN Pack Group: I
STORAGE
Provision to contain effluent from fire extinguishing. Separated from ammonia, water, oxidants and food and feedstuffs. Cool. Dry. Well closed. Keep in a well-ventilated room. Store in an area without drain or sewer access.
PACKAGING
Do not transport with food and feedstuffs.

SULFUR DICHLORIDE

ICSC: 1661

PHYSICAL & CHEMICAL INFORMATION
Physical State; Appearance RED-TO-BROWN FUMING LIQUID WITH PUNGENT ODOUR. Physical dangers The vapour is heavier than air. Chemical dangers Decomposes on heating. This produces toxic and corrosive fumes including hydrogen chloride and sulfur oxides. Reacts violently with strong oxidants, acetone and ammonia. Reacts with water. This produces hydrogen chloride (see ICSC 0163). Attacks many metals in the presence of water.	Formula: Cl₂S Molecular mass: 103.0 Decomposes at 59°C Melting point: -78°C Relative density (water = 1): 1.6 Solubility in water: reaction Vapour pressure, kPa at 20°C: 23 Relative vapour density (air = 1): 3.6 Relative density of the vapour/air-mixture at 20°C (air = 1): 1.5 Auto-ignition temperature: 234°C

PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
RED-TO-BROWN FUMING LIQUID WITH PUNGENT ODOUR.

Physical dangers
The vapour is heavier than air.

Chemical dangers
Decomposes on heating. This produces toxic and corrosive fumes including hydrogen chloride and sulfur oxides. Reacts violently with strong oxidants, acetone and ammonia. Reacts with water. This produces hydrogen chloride (see ICSC 0163). Attacks many metals in the presence of water.

Formula: Cl₂S
Molecular mass: 103.0
Decomposes at 59°C
Melting point: -78°C
Relative density (water = 1): 1.6
Solubility in water: reaction
Vapour pressure, kPa at 20°C: 23
Relative vapour density (air = 1): 3.6
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.5
Auto-ignition temperature: 234°C

EXPOSURE & HEALTH EFFECTS
Routes of exposure Serious by all routes of exposure. Effects of short-term exposure The substance is corrosive to the eyes, skin and respiratory tract. Corrosive on ingestion. Inhalation may cause lung oedema. See Notes.	Inhalation risk A harmful contamination of the air can be reached very quickly on evaporation of this substance at 20°C. Effects of long-term or repeated exposure

EXPOSURE & HEALTH EFFECTS

Routes of exposure
Serious by all routes of exposure.

Effects of short-term exposure
The substance is corrosive to the eyes, skin and respiratory tract. Corrosive on ingestion. Inhalation may cause lung oedema. See Notes.

Inhalation risk
A harmful contamination of the air can be reached very quickly on evaporation of this substance at 20°C.

Effects of long-term or repeated exposure

OCCUPATIONAL EXPOSURE LIMITS

ENVIRONMENT
The substance is very toxic to aquatic organisms. It is strongly advised not to let the chemical enter into the environment.

NOTES
Reacts violently with fire extinguishing agents such as water. The symptoms of lung oedema often do not become manifest until a few hours have passed and they are aggravated by physical effort. Rest and medical observation are therefore essential. Immediate administration of an appropriate inhalation therapy by a doctor, or by an authorized person, should be considered.

ADDITIONAL INFORMATION

EC Classification
Symbol: C, N; R: 14-34-37-50; S: (1/2)-26-45-61

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