Toluene diisocyanate manufacturer Knowledge BASF PolyTHF 2000 PTMEG2000 molecular weight 25190-06-1

BASF PolyTHF 2000 PTMEG2000 molecular weight 25190-06-1

author: Post: 09/05/2023 100read Comments Off

CAS Number : 25190-06-1

molecular formula : C₈H₁₈O₄

Chemical Name: polytetramethylene ether glycol; polytetrahydrofuran

Purpose : PTMEG is mainly used to produce polyurethane elastomers and polyurethane elastic fibers (called spandex domestically and internationally It is called Spandex) and ester ether copolymerized elastomer.

Products Packaging : 200KG barrel, loose water

Test parameters	Value	Test method
Molecular Weight	2000±50g/mol	SMT1701
Hydroxyl	54.7-57.5mg KOH/g	Calculation value
Maximum acidity	0.05 mg KOH/g	SMT1702
Water content	≤150 mg/kg	SMT1002
Chroma	≤40 APHA	SMT0201
Stabilizer,BHT	200-300 ppm	SMT1703

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