Tetrahydrofuran

Tetrahydrofuran, nke akpọchiri THF, bụ ngwakọta organic heterocyclic.Nke so na klaasị ether, bụ ngwa na-esi ísì ụtọ furan zuru ezu ngwaahịa hydrogenation.

Tetrahydrofuran bụ otu n'ime ether polar kacha ike.A na-eji ya dị ka ihe mgbaze pola ọkara na mmeghachi omume kemịkal na mmịpụta.Ọ bụ mmiri mmiri na-agbanwe agbanwe na-enweghị ụcha n'ime ụlọ ma nwee ísì yiri ether.Soluble na mmiri, ethanol, ether, acetone, Chemicalbook benzene na ndị ọzọ kasị organic mgbaze, mara dị ka "universal mgbaze".Na ọnụ ụlọ okpomọkụ na mmiri nwere ike ịbụ akụkụ ụfọdụ miscible, ụfọdụ iwu reagent azụmahịa bụ iji ebe a tetrahydrofuran reagent mmiri profiteer.N'ihi ọchịchọ nke THF ịmepụta peroxides na nchekwa, a na-agbakwunye BHT antioxidant na ngwaahịa mmepụta ihe.Ọdịnaya mmiri ≦0.2%.O nwere njirimara nke obere nsi, obere esi esi na mmiri dị mma.

Njirimara kemịkalụ:mmiri mmiri na-enweghị agba, yana ísì ether.Ejikọtara ya na mmiri, mmanya, ketone, benzene, ester, ether, na hydrocarbons.

Ngwa ngwa:

1. Akụrụngwa nke mmeghachi omume spandex:

Tetrahydrofuran n'onwe ya nwere ike ịbụ polycondensation (site na cationic mgbanaka-emepe repolymerization) n'ime polytetramethylene ether diol (PTMEG), nke a makwaara dị ka tetrahydrofuran homopolyl.PTMEG na toluene diisocyanate (TDI) mere nke na-eguzogide iyi, nkwụsị mmanụ, arụmọrụ dị ala, ike dị elu nke roba pụrụ iche;A na-eji dimethyl terephthalate na 1, 4-butanediol kwadoro ihe mgbochi polyether polyester elastic.PTMEG na ịdị arọ molekul nke 2000 na p-methylene bis (4-phenyl) diisocyanate (MDI) iji mee eriri polyurethane elastic fiber (SPANDEX fiber), roba pụrụ iche na ụfọdụ ihe mkpuchi ebumnuche pụrụ iche.Ojiji kacha mkpa nke THF bụ maka mmepụta PTMEG.Dị ka ọnụ ọgụgụ siri ike si kwuo, ihe dị ka 80% nke THF zuru ụwa ọnụ ka a na-eji maka mmepụta PTMEG, na PTMEG na-ejikarị maka mmepụta nke spandex fiber.

2. Ihe mgbaze nwere ọmarịcha arụmọrụ:

Tetrahydrofuran bụ ihe mgbaze a na-ejikarị eme ihe, karịsịa maka ịgbari PVC, polyvinylidene chloride na butyl aniline, nke a na-ejikarị eme ihe dị ka mkpuchi elu, mkpuchi anticorrosive, ink na-ebipụta, teepu na ihe mkpuchi ihe nkiri, na Chemicalbook na electroplating aluminum mmiri mmiri nwere ike ịbụ akara aka ike nke aluminum. oyi akwa na-egbuke egbuke.Ihe mgbaze maka mkpuchi teepu, mkpuchi elu PVC, ihicha reactor PVC, wepụ ihe nkiri PVC, mkpuchi cellophane, ink na-ebipụta plastik, mkpuchi polyurethane thermoplastic, nrapado, nke a na-ejikarị na mkpuchi elu, mkpuchi mkpuchi, inks, ndị na-emepụta ihe na ndị na-ahụ maka ọgwụgwọ elu maka akpụkpọ anụ sịntetik.

3. Ejiri ya dị ka akụrụngwa maka njikọ organic dị ka ọgwụ:

Maka mmepụta nke tetrahydrothiophene, 1.4-dichloroethane, 2.3-dichlorotetrahydrofuran, valerolactone, butyl lactone na pyrrolidone.Na ụlọ ọrụ na-emepụta ọgwụ, a na-eji ya na njikọ nke ụkwarabixinbixin, rifumycin, progesterone na ụfọdụ ọgwụ hormone.A na-emepụta Tetrahydrothiophenol site na ọgwụgwọ hydrogen sulfide, nke enwere ike iji dị ka onye na-esi ísì ụtọ na gas mmanụ (ihe mgbakwunye njirimara), ma bụrụkwa isi ihe mgbaze na ụlọ ọrụ ọgwụ.

4. Ojiji ndị ọzọ:

Chromatographic mgbaze (gel permeation chromatography), eji eke gas ekpomeekpo, acetylene mmịpụta ihe mgbaze, polymer material light stabilizer, wdg Na mbara ngwa nke tetrahydrofuran, karịsịa na-adịbeghị anya, ngwa ngwa uto nke polyurethane ụlọ ọrụ, na-achọ PTMEG na anyị. obodo na-abawanye ụba, na ọchịchọ maka tetrahydrofuran na-egosikwa usoro uto ngwa ngwa.

Ihe egwu:Tetrahydrofuran bụ nke klaasị 3.1 mmiri ọkụ na-ere ọkụ nwere ebe ọkụ dị ala, na-ere ọkụ nke ukwuu, uzuoku nwere ike imepụta ngwakọta mgbawa na ikuku, oke mgbawa bụ 1.5% ~ 12% (ọnụego olu), na mgbakasị ahụ.Ụdị ọkụ ya nke ukwuu bụkwa ihe ize ndụ nchekwa.Nchekwa nchekwa kachasị na THFS bụ iji nwayọọ na-emepụta peroxides organic na-agbawa agbawa mgbe ekpughere ya na ikuku.Iji belata ihe ize ndụ a, THFS a na-ere ahịa na-ejikarị 2, 6-di-tert-butylp-cresol (BHT) agbakwunyere iji gbochie mmepụta nke peroxides organic.N'otu oge ahụ, THF ekwesịghị ịkpọ nkụ n'ihi na organic peroxides ga-etinye uche na ihe fọdụrụnụ nke distillation.

Akpachara anya ọrụ:ọrụ mechiri emechi, ikuku ventilashị zuru oke.A ga-azụrịrị ndị na-arụ ọrụ nke ọma ma rube isi na usoro ọrụ.A na-atụ aro ka ndị na-arụ ọrụ na-eyi ihe nzacha ụdị gas nkpuchi (ọkara nkpuchi), ugogbe nchekwa nchekwa, uwe mgbochi static, na gloves na-eguzogide mmanụ.Wepụ ọkụ, isi iyi ọkụ, enweghị anwụrụ ọkụ n'ebe ọrụ.Jiri sistemu na akụrụngwa ikuku ikuku na-egbochi mgbawa.Gbochie uzuoku ịfefe n'ikuku ebe ọrụ.Zere kọntaktị na oxidants, acids na bases.Ekwesịrị ịchịkwa ọnụego na-erugharị n'oge ndochi, ma ekwesịrị inwe ngwaọrụ ala iji gbochie mkpokọta electrostatic.Mgbe a na-ejikwa ya, a ga-eme ka a na-ebufe ọkụ na ịkwatu ya ka ọ ghara imebi nkwakọ ngwaahịa na arịa.Ejiri ụdị dị iche iche kwekọrọ na ọnụọgụ ngwa ọkụ yana ngwa ngwa ọgwụgwọ ihe mberede na-agbapụta.Akpa efu nwere ike ịnwe ihe fọdụrụ na-emerụ ahụ.

Akpachara anya nchekwa:Na-emekarị ngwa ahịa nwere ihe mgbochi.Chekwaa n'ụlọ nkwakọba ihe dị jụụ, ikuku ikuku.Wepụ ọkụ na okpomọkụ.Okpomọkụ nke ụlọ nkwakọba ihe ekwesịghị gafere 30 ℃.Ekwesịrị mechie ngwugwu ahụ ma ọ bụghị na kọntaktị na ikuku.Ekwesịrị ịchekwa ya iche site na oxidizers, acids na bases, ma ghara ịgwakọta ya.A na-anabata ihe ọkụ na-egbochi mgbawa na ikuku ikuku.Ejila akụrụngwa igwe na ngwaọrụ ndị na-enwekarị ọkụ.Ebe nchekwa ahụ kwesịrị ịkwado ya na akụrụngwa ọgwụgwọ mberede na-agbapụta na ihe njide kwesịrị ekwesị.

Nkwakọ ngwaahịa: 180KG/drum