|ACUTE HAZARDS / SYMPTOMS||PREVENTION||FIRST AID / FIRE FIGHTING|
|FIRE||Flammable.||NO open flames, NO sparks and NO smoking.||Use alcohol-resistant foam, dry powder, carbon dioxide.|
|EXPLOSION||Above 44°C explosive vapour/air mixtures may be formed.||Above 44°C use a closed system, ventilation and explosion-proof electrical equipment. 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||Confusion. Cough. Dizziness. Drowsiness. Headache. Sore throat. Vomiting.||Use ventilation, local exhaust or breathing protection.||Fresh air, rest. Refer for medical attention.|
|Skin||Redness. Dry skin.||Protective gloves.||Rinse skin with plenty of water or shower.|
|Eyes||Redness. Pain.||Wear safety spectacles.||First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.|
|Ingestion||See Inhalation.||Do not eat, drink, or smoke during work.||Rinse mouth. Do NOT induce vomiting. Refer for medical attention .|
|PACKAGING & LABELLING|
|Personal protection: filter respirator for organic gases and vapours adapted to the airborne concentration of the substance. Collect leaking and spilled liquid in sealable containers as far as possible. Absorb remaining liquid in sand or inert absorbent. Then store and dispose of according to local regulations. Do NOT wash away into sewer. Do NOT let this chemical enter the environment.||
Symbol: Xn, N; R: 10-20-36/37/38-51/53; S: (2)-26-61
UN Hazard Class: 3; UN Pack Group: III
|EMERGENCY RESPONSE||SAFE STORAGE|
Transport Emergency Card: TEC (R)-30GF1-III.
NFPA Code: H0; F2; R0.
|Fireproof. Separated from strong oxidants. Well closed. Keep in a well-ventilated room.|
Physical State; Appearance
COLOURLESS LIQUID WITH CHARACTERISTIC ODOUR.
Occupational exposure limits
Routes of exposure
The substance can be absorbed into the body by inhalation.
Effects of short-term exposure
Effects of long-term or repeated exposure
|PHYSICAL PROPERTIES||ENVIRONMENTAL DATA|
Boiling point: 169°C
Melting point: -44°C
Relative density (water = 1): 0.88
Solubility in water: very poor
Relative vapour density (air = 1): 4.1
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.01
Flash point: 44°C c.c.
Auto-ignition temperature: 500°C
Explosive limits, vol% in air: 0.9-6.4
Octanol/water partition coefficient as log Pow: 3.8
|The substance is toxic to aquatic organisms. Bioaccumulation of this chemical may occur in fish.|
Use of alcoholic beverages enhances the harmful effect.
Depending on the degree of exposure, periodic medical examination is suggested.
See also ICSC 1155 1,3,5-Trimethylbenzene (Mesitylene), ICSC 1362 1,2,3-Trimethylbenzene (Hemimellitene), ICSC 1389 Trimethyl benzene (mixed isomers).
1,3,5-Trimethylbenzene (Mesitylene) is classified as a marine pollutant.
Card has been partly updated in October 2004. See sections Occupational Exposure Limits, EU classification, Emergency Response.
Card has been partially updated in February 2009: see Occupational Exposure Limits.
See Also: Toxicological Abbreviations