Te utu pai a te kaihanga Tetrahydrofuran CAS: 109-99-9

Tetrahydrofuran CAS:109-99-9 Whakaahua Matua o te Kaihanga

whakaahuatanga poto:

He wai kore tae te Tetrahydrofuran (THF), he wai pūngāwerewere, he kakara ethereal, he rite rānei ki te acetone, ā, ka uru ki te wai me te nuinga o ngā whakarewa rauropi. He tino mura te Tetrahydrofuran (THF), ā, ka pirau pea i te wera hei hauota waro me te hauhā waro. Ki te roa te rokiroki i te mea ka pā ki te hau, ā, i te korenga o tētahi antioxidant, ka pirau pea te THF hei peroxides pahū.

CAS: 109-99-9

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TETRAMETHYLENE ETHER GLYCOL 2000 POLYMER; Tetrahydrofuran ,99.8% [Tetrahydrofuran, Tiwhikete ACS/HPLC]; Tetrahydrofuran, 99.6%, whakapūmautia ki te BHT, mō te tātaritanga ACS; Tetrahydrofuran, 99+%, whakapūmautia ki te BHT, tino parakore; Tetrahydrofuran, 99.9%, korewai, whakapūmautia, tino parakore; Tetrahydrofuran, 99.5+%, mō te tirotiro; Tetrahydrofuran, 99.8%, kāore i whakapūmautia, mō te HPLC; Tetrahydrofuran, 99.85%, wai <50 ppm, whakapūmautia, tino maroke.

Ngā Whakamahinga o Tetrahydrofuran

E whakamahia ana te Tetrahydrofuran i roto i te hanga polymers me ngā matū ahuwhenua, rongoā, me ngā matū hokohoko. He maha ngā mahi hanga e mahia ana i roto i ngā pūnaha kati, i raro rānei i ngā mana whakahaere hangarau e whakawhāiti ana i te pānga me te tukunga o ngā kaimahi ki te taiao. E whakamahia ana hoki te THF hei whakarewa (hei tauira, te whakaurunga paipa) ka nui ake pea ngā pānga ina whakamahia i roto i ngā wāhi kuiti me te kore e ranea te hauhautanga. Ahakoa kei roto noa te THF i te kakara kawhe, te pīni kikī paraoa, me te heihei kua tunua, kāore e whakaarohia he tūponotanga nui ngā pānga taiao.
Ka whakamahia te waikura butylene hei whakapūkara, ā, kāore e konatunatua ki ētahi atu matū. Ka whakamahia hei whakatau i te tae o te wahie me te hanganga paru.
E whakamahia ana te Tetrahydrofuran hei whakarewa mō ngā kapia, ngā winira, me ngā pūhui teitei; hei reo tauhohenga Grignard mō ngā tauhohenga organometara me te haidira whakarewa; ā, i roto i te hanganga o te waikawa succinic me te butyrolactone.
He whakarewa mō ngā pūhui matūriki teitei, inā koa te polyvinyl chloride. Hei reo tauhohenga mō ngā tauhohenga Grignard me te metal hydride. I roto i te hanganga o te butyrolactone, te waikawa succinic, te 1,4-butanediol diacetate. He whakarewa i roto i ngā tikanga histological. Ka taea te whakamahi i raro i te Federal Food, Drug & Cosmetic Act mō te hanga tuhinga mō te tākai, te kawe, te penapena rānei i ngā kai mēnā kāore te nui o te toenga e neke ake i te 1.5% o te kiriata: Fed. Regist. 27, 3919 (Paenga-whāwhā 25, 1962).
Ko te Tetrahydrofuran e whakamahia ana i te nuinga (80%) hei hanga polytetramethylene ether glycol, te pūhui turanga e whakamahia ana i roto i te hanga muka elastomeric (hei tauira, spandex) me ngā elastomers polyurethane me te polyester (hei tauira, hiako horihori, wira papa reti). Ko te toenga (20%) e whakamahia ana i roto i ngā tono whakarewa (hei tauira, sima paipa, piripiri, waituhi tā, me te rīpene aukume) me te hei whakarewa tauhohenga i roto i ngā hanganga matū me te rongoā.