Product Identification

Product Name

Methyl allyl trisulfide

Synonyms

1-Methyl-3-allyl trisulfide
3-Methylsulfanyldisulfanylprop-1-ene
Methyl 2-propenyl trisulfide

CAS

34135-85-8

Formula

C4H8S3

Molecular Weight

152.31

EINECS

251-843-8

Merck

12,6094

Physical and Chemical Properties

Appearance

Yellow liquid.

Solubility in water

Insoluble

Melting Point

<25

Boiling Point

213

Vapor Pressure

0.25 (25 C)

Density

1.16 g/cm3 (20 C)

Partition Coefficient

3.76

Heat Of Vaporization

43.1 kJ/mol

Vapor Density

5.2

Odor threshold

.0001

Refractive Index

1.589

First Aid Measures

Ingestion

DO NOT INDUCE VOMITING! NEVER MAKE AN UNCONSCIOUS PERSON VOMIT OR DRINK FLUIDS! Remove victim immediately from source of exposure. Provide rest, warmth and fresh air. Get medical attention.

Inhalation

Move the exposed person to fresh air at once. Get medical attention. NOTE! Keep affected person away from heat, sparks and flames!

Skin

Remove affected person from source of contamination. Remove contaminated clothing. Wash skin thoroughly with soap and water for several minutes. Get medical attention if any discomfort continues.

Eyes

Make sure to remove any contact lenses from the eyes before rinsing. Promptly wash eyes with plenty of water while lifting the eye lids. Continue to rinse for at least 15 minutes. Get medical attention promptly if symptoms occur after washing.

Handling and Storage

Storage

Keep away from heat, sparks and open flame. Keep containers tightly closed. Keep in original container. Flammable liquid storage.

Hazards Identification

Ingestion

May cause stomach pain or vomiting.

Inhalation

May cause irritation to the respiratory system.

Skin

Acts as a defatting agent on skin. May cause cracking of skin, and eczema.

Eyes

May cause severe irritation to eyes.

EC Risk Phrase

R: 10 36/37

EC Safety Phrase

S: 16 23 36/37/39

UN (DOT)

1993

Exposure Controls/Personal Protection

Personal Protection

Protective gloves, splash proof eye goggles and protective clothing.

Fire Fighting Measures

Flash Point

32

Fire Fighting

Extinguishing media: Foam. Dry chemicals, sand, dolomite etc. Carbon dioxide (CO2). DO NOT use water if avoidable. Avoid breathing fire vapours. Cool containers exposed to flames with water until well after the fire is out. Keep run-off water out of sewers and water sources. Dike for water control.

Accidental Release Measures

Small spills/leaks

Stop leak if possible without risk. Extinguish all ignition sources. Avoid sparks, flames, heat and smoking. Ventilate. Do not contaminate water sources or sewer. Absorb in vermiculite, dry sand or earth and place into containers. Wash thoroughly after dealing with a spillage.

Stability and Reactivity

Stability

Stable at normal temperatures and pessures.

Decomposition

Oxides of carbon and sulfur.

Transport Information

UN Number

1993

Hazard Class

3

Packing Group

II