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TETRAHYDROTHIOPHENEICSC: 0677
Tetramethylene sulfide
Thiolane
Thiophane
Thiocyclopentane
March 1998
CAS #: 110-01-0
UN #: 2412
EC Number: 203-728-9

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Highly flammable. Heating will cause rise in pressure with risk of bursting. Gives off irritating or toxic fumes (or gases) in a fire.  Vapour/air mixtures are explosive.  NO open flames, NO sparks and NO smoking.  Closed system, ventilation, explosion-proof electrical equipment and lighting.  Use water spray, alcohol-resistant foam, powder, carbon dioxide.  In case of fire: keep drums, etc., cool by spraying with water. 

   
  SYMPTOMS PREVENTION FIRST AID
Inhalation Headache. Nausea. Dizziness. Palpitations.  Use closed system or ventilation.  Fresh air, rest. 
Skin   Protective gloves.  Rinse and then wash skin with water and soap. 
Eyes   Wear safety spectacles.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion   Do not eat, drink, or smoke during work.  Rinse mouth. Rest. 

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Personal protection: filter respirator for organic gases and vapours adapted to the airborne concentration of the substance. Collect leaking liquid in sealable containers. Absorb remaining liquid in sand or inert absorbent. Then store and dispose of according to local regulations. Do NOT wash away into sewer. 

According to UN GHS Criteria

 

Transportation
UN Classification
UN Hazard Class: 3; UN Pack Group: II 

STORAGE
Fireproof. Separated from strong oxidants. Cool. Store in an area without drain or sewer access. 
PACKAGING
 
TETRAHYDROTHIOPHENE ICSC: 0677
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
COLOURLESS LIQUID WITH CHARACTERISTIC ODOUR. 

Physical dangers
The vapour is heavier than air and may travel along the ground; distant ignition possible. 

Chemical dangers
On combustion, forms sulfur oxides. Reacts with strong oxidants such as nitric acid. 

Formula: C4H8S
Molecular mass: 88.2
Boiling point: 119-121°C
Melting point: -96.2°C
Relative density (water = 1): 1.0
Solubility in water: none
Vapour pressure, kPa at 25°C: 2.4
Relative vapour density (air = 1): 3.05
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.05
Flash point: 12°C
Auto-ignition temperature: 200°C
Explosive limits, vol% in air: 1.1-12.3
Octanol/water partition coefficient as log Pow: 1.8  


EXPOSURE & HEALTH EFFECTS

Routes of exposure
The substance can be absorbed into the body by inhalation of its vapour and by ingestion. 

Effects of short-term exposure
The substance may cause effects on the central nervous system. 

Inhalation risk
 

Effects of long-term or repeated exposure
 


OCCUPATIONAL EXPOSURE LIMITS
MAK: 180 mg/m3, 50 ppm; peak limitation category: I(1); pregnancy risk group: C 

ENVIRONMENT
 

NOTES
 

ADDITIONAL INFORMATION
  EC Classification
Symbol: F, Xn; R: 11-20/21/22-36/38-52/53; S: (2)-16-23-36/37-61 

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    See Also:
       Toxicological Abbreviations