Polytetramethylene ether glycol PTMEG

BASF PolyTHF 2900 PTMEG3000 Molecular Weight

Chemical name ：polytetramethylene ether glycol; polytetrahydrofuran

CAS Number : 25190-06-1

Molecular formula : C₈H₁₈O₄

Uses ：PTMEG is mainly used in the production of polyurethane elastomers, polyurethane elastic fibers (known as spandex in domestic, Spandex in international) and ester ether copolymer elastomers.

Product packaging ：200KG, barrel

Test parameters	Unit of measurement	Method	Value
Hydroxyl content	mgKOH/g	KSM0065	37.4~40.1
molecular weight	g/mol	Calculated	2800~3000
water content	mg/kg	KSM0010	max. 150
acidity	mgKOH/g	KSM0065	max. 0.05
Chroma	APHA	KSM9172	max. 40
BHT content	mg/kg	UV	200~350