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

BASF PolyTHF 2900 PTMEG3000 molecular weight 25190-06-1

author: Post: 09/05/2023 70read Comments Off

Chemical Name : polytetramethylene ether glycol; polytetrahydrofuran

CAS number : 25190-06-1

molecular formula : C₈H₁₈O₄

Purpose : PTMEG is mainly used in the production of polyurethane elastomers, polyurethane elastic fibers (called spandex domestically, and spandex internationally) and ester-ether copolymerized elastomers.

Product Packaging : 200KG, barreled

Test parameters	unit	Test method	Characteristic value
Hydroxyl	mgKOH/g	KSM0065	37.4~40.1
Molecular Weight	g/mol	Calculation 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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