Diglycol terephthalate

  • Bis(2-hydroxyethyl) terephthalate
  • Bis(ethylene glycol) terephthalate
  • Bis(hydroxyethyl) terephthalate
  • Diethylene glycol terephthalate
  • 1,4-Benzenedicarboxylic acid, bis(2-hydroxyethyl) ester
Formula
C12H14O6
Structure
Uses
Major uses include captive chemical intermediate in manufacture of polyethylene terephthalate.

Registry Numbers and Inventories.
CAS
959-26-2
EC (EINECS/ELINCS)
213-497-6
Beilstein/Gmelin
1915096
Beilstein Reference
4-09-00-03310
Canada DSL/NDSL
NDSL
US TSCA
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C12H14O6
Formula mass
254.24
Melting point, °C
110
Boiling point, °C
447
Vapor pressure, mmHg
9E-9 (25 C)
Solubility in water
Slightly soluble
pKa/pKb
13.48 (pKa)
Heat of vaporization
74.4 kJ/mol

Hazards and Protection.
Storage
Keep tightly closed. Store in a cool dry place.
Protection
Compatible chemical-resistant gloves. Chemical safety goggles.
Respirators
Government approved respirator.
Small spills/leaks
Sweep up, place in a bag and hold for waste disposal. Avoid raising dust. Ventilate area and wash spill site after material pickup is complete.
Stability
Stable at normal temperatures and pressures.
Incompatibilities
Strong oxidizing agents, Bases.
Decomposition
Carbon monoxide, Carbon dioxide.

Fire.
Flash Point,°C
172
Fire fighting
Extinguish using Water spray. Carbon dioxide, dry chemical powder, or appropriate foam. Wear self-contained breathing apparatus and protective clothing to prevent contact with skin and eyes.
Hazards
Emits toxic fumes under fire conditions.
Health
0
 
Flammability
0
 
 
Reactivity
0
 

Health.
Exposure effects
Properties of this material have not yet been prepared. Any recommendations are of a general nature. Many chemicals cause irritation of the eyes, skin, and respiratory tract. In severe cases respiratory tract irritation can progress to ARDS/acute lung injury which may be delayed in onset for up to 24 to 72 hours in some cases Irritation or burns of the esophagus or gastrointestinal tract are also possible if caustic or irritant chemicals are ingested. ALWAYS contact your local poision control authority or medical professional for assistance.
   Inhalation
Material may be irritating to mucous membranes and upper respiratory tract.
   Skin
May cause skin irritation.
   Eyes
May cause eye irritation.

First aid
 
   Ingestion
If swallowed, wash out mouth with water provided person is conscious. Call a physician.
   Inhalation
If inhaled, remove to fresh air. If not breathing give artificial respiration. If breathing is difficult, give oxygen.
   Skin
In case of contact, immediately wash skin with soap and copious amounts of water.
   Eyes
In case of contact, immediately flush eyes with copious amounts of water for at least 15 minutes.

Transport.