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BASF PolyTHF 2900 PTMEG3000 molecular weight 25190-06-1

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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