Toluene diisocyanate manufacturer Knowledge polythf 1000 ptmeg1000 molecular weight 25190-06-1

polythf 1000 ptmeg1000 molecular weight 25190-06-1

author: Post: 12/04/2023 122read 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, 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

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