IPCS INCHEM Home
DIMETHYL TEREPHTHALATE
ICSC: 0262
Peer-Review Status: 19.10.2005 Validated
Dimethyl p-phthalate
Dimethyl 1,4-benzenedicarboxylate 
CAS #: 120-61-6 RTECS #: WZ1225000
EINECS #: 204-411-8
 		    Formula: C6H4(COOCH3)2 / C10H10O4
Molecular mass: 194.2

TYPES OF
HAZARD /
EXPOSURE 		ACUTE HAZARDS / SYMPTOMS      PREVENTION      FIRST AID / FIRE FIGHTING
FIRE Combustible.  NO open flames.  Use water spray, foam, powder, carbon dioxide. 
EXPLOSION Finely dispersed particles form explosive mixtures in air.  Closed system, ventilation, explosion-proof electrical equipment and lighting. Prevent deposition of dust.   
 
EXPOSURE      
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
 		PACKAGING & 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.   
EC Classification
 
UN Classification
 
GHS Classification
 

EMERGENCY RESPONSE SAFE STORAGE
NFPA Code: H1; F1; R0.  Store in an area without drain or sewer access. 

IMPORTANT DATA
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. 

Occupational exposure limits
TLV (NOT-ESTABLISHED):. 

Routes of exposure
 

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 short-term exposure
May cause mechanical irritation. 

Effects of long-term or repeated exposure
 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
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   		The substance is harmful to aquatic organisms. 

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

ADDITIONAL INFORMATION
 

IPCS
International
Programme on
Chemical Safety 		WHO ILO EC Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2004-2012
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. 
    See Also:
       Toxicological Abbreviations