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THIOPHENE ICSC: 1190
October 1997
Divinylene sulphide
Thiacyclopentadiene
Thiofuran

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CAS # 110-02-1 C 4H 4S / SCH=CHCH=CH
RTECS # XM7350000 Molecular mass: 84.1
UN # 2414

TYPES OF
HAZARD /
EXPOSURE
ACUTE HAZARDS / SYMPTOMS      PREVENTION      FIRST AID /    FIRE FIGHTING   
FIRE Highly flammable. Gives off irritating or toxic fumes (or gases) in a fire.
NO open flames, NO sparks, and NO smoking. NO contact with oxidizing agents.
Foam, powder, carbon dioxide.
EXPLOSION Vapour/air mixtures are explosive.
Closed system, ventilation, explosion-proof electrical equipment and lighting. Prevent build-up of electrostatic charges (e.g., by grounding).
In case of fire: keep drums, etc., cool by spraying with water.
EXPOSURE
PREVENT GENERATION OF MISTS!

Inhalation Cough. Dizziness. Sore throat.
Ventilation, local exhaust, or breathing protection.
Fresh air, rest. Refer for medical attention.
Skin Redness.
Protective gloves.
Remove contaminated clothes. Rinse and then wash skin with water and soap.
Eyes Redness. Pain.
Safety goggles, or eye protection in combination with breathing protection.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
Ingestion
Do not eat, drink, or smoke during work.
Rinse mouth. Rest.

SPILLAGE DISPOSAL PACKAGING & LABELLING
Collect leaking and spilled liquid in sealable containers as far as possible. Absorb remaining liquid in sand or inert absorbent and remove to safe place. Do NOT wash away into sewer. (extra personal protection: filter respirator for organic gases and vapours).
UN Hazard Class: 3
UN Pack Group: II


EMERGENCY RESPONSE STORAGE
Transport Emergency Card: TEC (R)-30G30 NFPA Code: H 2; F 3; R 0;
Fireproof. Separated from oxidizing materials.

IMPORTANT DATA
PHYSICAL STATE; APPEARANCE:
COLOURLESS LIQUID , WITH PUNGENT ODOUR.

PHYSICAL DANGERS:
The vapour is heavier than air and may travel along the ground; distant ignition possible. As a result of flow, agitation, etc., electrostatic charges can be generated.

CHEMICAL DANGERS:
The substance decomposes on heating and on burning producing toxic and irritating fumes (sulfur oxides). Reacts violently with oxidizing materials, including fuming nitric acid.

OCCUPATIONAL EXPOSURE LIMITS:
TLV not established.
ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation of its vapour.

INHALATION RISK:
No indication can be given about the rate in which a harmful concentration in the air is reached on evaporation of this substance at 20°C.

EFFECTS OF SHORT-TERM EXPOSURE:
The substance irritates the eyes and the skin.


PHYSICAL PROPERTIES
Boiling point: 84°C
Melting point: -38°C
Relative density (water = 1): 1.06
Solubility in water: none
Vapour pressure, kPa at 12.5°C: 5.3
Relative vapour density (air = 1): 2.9
Flash point: -1°C
Auto-ignition temperature: 395°C
Explosive limits, vol% in air: 1.5-12.5
Octanol/water partition coefficient as log Pow: 1.81

ENVIRONMENTAL DATA


NOTES


IPCS
International
Programme on
Chemical Safety
Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission

© IPCS 1999
LEGAL NOTICE Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible for the use which might be made of this information.



Updated by AS. Approved by EC. Last update: 10.10.2000.