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DIMETHYL TEREPHTHALATEICSC: 0262
October 2005
CAS #: 120-61-6Dimethyl p-phthalate
Dimethyl 1,4-benzenedicarboxylate
EINECS #: 204-411-8

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Combustible.  Finely dispersed particles form explosive mixtures in air.  NO open flames.  Closed system, dust explosion-proof electrical equipment and lighting. Prevent deposition of dust.  Use water spray, foam, powder, carbon dioxide.   

   
  SYMPTOMS ACUTE HAZARDS FIRST AID
Inhalation   Use ventilation.  Fresh air, rest. 
Skin   Protective gloves.  Rinse and then wash skin with water and soap. 
Eyes Redness.  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. 

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Do NOT let this chemical enter the environment. Sweep spilled substance into covered sealable containers. If appropriate, moisten first to prevent dusting. Carefully collect remainder. Then store and dispose of according to local regulations. 

According to UN GHS Criteria

 

Transportation
UN Classification
 

STORAGE
Store in an area without drain or sewer access. 
PACKAGING
 
DIMETHYL TEREPHTHALATE ICSC: 0262
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
WHITE FLAKES. 

Physical dangers
Dust explosion possible if in powder or granular form, mixed with air. 

Chemical dangers
Decomposes on burning. This produces irritating fumes. 

Formula: C6H4(COOCH3)2 / C10H10O4
Molecular mass: 194.2
Boiling point: 288°C
Melting point: 140°C
Density: 1.2 g/cm³
Solubility in water at 13°C: very poor
Vapour pressure, Pa at 2.5°C: 1.4
Relative vapour density (air = 1): 5.5
Flash point: 141°C c.c.
Auto-ignition temperature: 518°C
Explosive limits, vol% in air: 0.8-11.8
Octanol/water partition coefficient as log Pow: 2.35  


EXPOSURE & HEALTH EFFECTS

Routes of exposure
 

Effects of short-term exposure
May cause mechanical irritation. 

Inhalation risk
A harmful contamination of the air will not or will only very slowly be reached on evaporation of this substance at 20°C. 

Effects of long-term or repeated exposure
 


Occupational exposure limits
 

ENVIRONMENT
The substance is harmful to aquatic organisms. 

NOTES
Common name: DMT.
May be transported in molten form, UN number 3256. 

ADDITIONAL INFORMATION
  EC Classification
 

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    See Also:
       Toxicological Abbreviations