Toluene diisocyanate manufacturer Knowledge BASF PolyTHF 2900 PTMEG3000 molecular weight 25190-06-1

BASF PolyTHF 2900 PTMEG3000 molecular weight 25190-06-1

author: Post: 12/05/2023 39read Comments Off

Chemical name ：Polytetramethylene ether glycol; polytetrahydrofuran

CAS number : 25190-06-1

Molecular formula : C₈H₁₈O₄

Purpose : PTMEG is mainly used to produce polyurethane elastomers, polyurethane elastic fibers (domestically known as spandex, internationally known as Spandex) and ester-ether copolymer elastomers.

Product packaging ：200KG, barreled

Test parameters	Unit	Test method	Eigenvalue
hydroxyl content	mgKOH/g	KSM0065	37.4~40.1
Molecular weight	g/mol	Calculate value	2800~3000
Water content	mg/kg	KSM0010	max. 150
Acidity	mgKOH/g	KSM0065	max. 0.05
Chroma	APHA	KSM9172	max. 40
BHTContent	mg/kg	UV	200~350

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