Polytetramethylene ether glycol PTMEG

Korea PTG PTMEG 650 Polytetrahydrofuran ether/polytetramethyl ether glycol PTMEG650 molecular weight

SPECIFICATION

ITEM	UNIT	SPECIFICATION
APPEARANCE	—	transparent liquid or White waxy solid at low temperature
MOLECULAR WEIGHT	G/MOL	650 +/- 25
HYDROXYL NO	MG KOH/G	166.2 ~ 179.5
ACID NO	MG KOH/G	MAX 0.05
MOISTURE CONTENT	WT PPM	MAX 200
COLOR	APHA	MAX 40
INHIBITOR (AS BHT)	WT PPM	220 +/- 50
Viscosity (Cps,40℃）	cps.40℃	203
Specific Gravity	40/4℃	0.984
Melting Point	℃	23 – 25
Flash Point	℃	>280

Solubility
Main raw material for synthetic polyurethane; used for synthesizing spandex, PU resin, water-based PUD, CPU, TPU, etc., with excellent physicochemical properties such as good hydrolysis resistance, high elasticity, wear resistance and low temperature resistance.

Hygroscopicity
Soluble in alcohol, esters, ketones, aromatic hydrocarbons and chlorinated hydrocarbons. Insoluble in aliphatic hydrocarbons and water. As the molecular weight increases, the solubility will decrease.
PTMEG is hygroscopic. At room temperature, PTMEG can absorb up to 2wt% of water according to different molecular weights.

Packing
IN 200 KG STEEL DRUM / 16 MT 20’ FCL

Manufacturer
KOREA PTG CO., LTD. Korea PTG