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SYNONYMS: Trigen; Triglycol; TEG; 2,2'-ethylenediqxybis(ethanol); 3,6-Dioxa-1,8-octanediol; Glycol Bis(Hydroxyethyl) Ether; Di-beta- Hydroxyethoxyethane; 1,2-bis(2-hydroxyethoxy)ethane; 3,6-dioxaoctane-1,8-diol; 2,2'-(1,2-ethanediylbis(oxy)) bisethanol; ethylene glycol dihydroxydiethyl ether; Trigol; Ethylene glycol-bis-(2-hydroxyethyl) ether; 1,2-Bis(2-hydroxy)ethane; Ethylene glycal-bis-(2-hydroxyethyl ether)

CAS NO.: 112-27-6

EINECS NO.: 203-953-2

FORMULA: HOCH₂CH₂OCH₂CH₂OCH₂CH₂OH

MOL WT.: 150.17

H.S. CODE: 2909.49

PHYSICAL STATE: clear liquid

MELTING POINT: -7 centigrade

BOILING POINT: 278 centigrade

SPECIFIC GRAVITY: 1.124-1.126

SOLUBILITY IN WATER: miscible

VAPOR DENSITY: 5.17

AUTOIGNITION: 700 centigrade

NFPA RATINGS: Health: 1 Flammability: 1 Reactivity: 0

FLASH POINT: 165 centigrade

STABILITY: Stable under ordinary conditions

PURITY: 98.5% min

APPLICATIONS: TEG is displacing diethylene glycol in many of these applications on account of its lower toxicity. TEG finds use as a vinyl plasticizer, as an intermediate in the manufacture of polyester resins and polyols, and as a solvent in many miscellaneous applications. The main uses for TEG depend upon its hygroscopic properties. Air conditioning systems use TEG as dehumidifiers and, when volatilized, as an air disinfectant for bacteria and virus control.