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ALLYL PROPYL DISULFIDE ICSC: 1422
Date of Peer Review: October 2001

2-Propenyl propyl disulfide
Onion oil
CAS # 2179-59-1 C6H12S2 / CH2=CHCH2SSCH2CH2CH3
RTECS # JO0350000 Molecular mass: 148.3
UN # 1993
EC #
TYPES OF HAZARD / EXPOSURE ACUTE HAZARDS / SYMPTOMS PREVENTION FIRST AID / FIRE FIGHTING
FIRE Combustible. Gives off irritating or toxic fumes (or gases) in a fire.
NO open flames.
Foam, dry powder, carbon dioxide.
EXPLOSION Above 56C explosive vapour/air mixtures may be formed.
Above 56C use a closed system, ventilation.

EXPOSURE


Inhalation Burning sensation. Cough. Chest tightness. Nausea. Vomiting.
Ventilation, local exhaust, or breathing protection.
Fresh air, rest.
Skin Burning sensation. Redness.
Protective gloves.
Remove contaminated clothes. Rinse and then wash skin with water and soap.
Eyes Redness. Pain. Causes watering of the eyes.
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.

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. Chemical protection suit including self-contained breathing apparatus.
EU Classification
UN Classification
UN Hazard Class: 3
UN Pack Group: III
EMERGENCY RESPONSE SAFE STORAGE
Transport Emergency Card: TEC (R)-30GF1-III
Separated from oxidants.
IPCS
International
Programme on
Chemical Safety
Prepared in the context of cooperation between the International Programme on Chemical Safety and the Commission of the European Communities IPCS, CEC 2004

SEE IMPORTANT INFORMATION ON BACK


ALLYL PROPYL DISULFIDE ICSC: 1422
IMPORTANT DATA
PHYSICAL STATE; APPEARANCE:
PALE YELLOW LIQUID, WITH PUNGENT ODOUR.

CHEMICAL DANGERS:
The substance decomposes on burning producing sulfur oxides. Reacts with oxidants.

OCCUPATIONAL EXPOSURE LIMITS:
TLV: 2 ppm as TWA, 3 ppm as STEL; Intended change: 0.5 ppm SEN; (ACGIH 2004).
MAK: 2 ppm, 12 mg/m Peak limitation category: I(1); (DFG 2004).
ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation and by ingestion.

INHALATION RISK:
A harmful contamination of the air can be reached rather quickly on evaporation of this substance at 20C.

EFFECTS OF SHORT-TERM EXPOSURE:
The substance is irritating to the eyes, the skin and the respiratory tract

PHYSICAL PROPERTIES
Boiling point at 2.1kPa: 66-69C
Melting point: -15C
Relative density (water = 1): 0.9
Solubility in water: none
Vapour pressure, Pa at 20C: 50
Relative vapour density (air = 1): 5.1
Relative density of the vapour/air-mixture at 20C (air = 1): 1.00
Flash point: 56C
ENVIRONMENTAL DATA

NOTES
Card has been partly updated in April 2005. See sections Occupational Exposure Limits, Emergency Response.
ADDITIONAL INFORMATION


LEGAL NOTICE Neither the CEC nor the IPCS nor any person acting on behalf of the CEC or the IPCS is responsible for the use which might be made of this information
IPCS, CEC 2004