Toluene diisocyanate manufacturer Knowledge BASF BASF PolyTHF 1000 PTMEG1000 molecular weight 25190-06-1

BASF BASF PolyTHF 1000 PTMEG1000 molecular weight 25190-06-1

BASF BASF PolyTHF 1000 PTMEG1000 molecular weight 25190-06-1

CAS number 25190-06-1


Molecular formula C8H18O4


Chemical name Polytetramethylene ether glycol; polytetrahydrofuran

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 drum, bulk water

Test parameters

Value

Test method

Molecular weight

975-1025g/mol

Calculate value

hydroxyl content

109.5-115.1mg KOH/g

DIN 53 240

Maximum acid content

0.05 mg KOH/g

DIN EN ISO 2114

Water content

≤150 mg/kg

DIN 51 777

Chroma

≤40 APHA

DIN EN 1557

This article is from the Internet, does not represent the position of Toluene diisocyanate reproduced please specify the source.https://www.chemicalchem.com/archives/14732

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