1, 4-butanediol izakhiwo

Incazelo emfushane:

1, 4-butanediol

Isibizo: 1, 4-dihydroxybutane.

Isifinyezo: BDO,BD,BG.

Igama lesiNgisi: 1, 4-Butanediol;1, 4 - butylene glycol;1, 4 - i-dihydroxybutane.

Ifomula yamangqamuzana ithi C4H10O2 futhi isisindo samangqamuzana singu-90.12.Inombolo ye-CAS ithi 110-63-4, futhi inombolo ye-EINECS ithi 203-785-6.

Ifomula yesakhiwo: HOCH2CH2CH2CH2OH.

Thumela i-imeyili kithi

Imininingwane Yomkhiqizo

Omaka bomkhiqizo

Izakhiwo zomzimba namakhemikhali

Uketshezi olunamafutha angenambala, luyavutha, luncibilika emanzini, i-methanol, i-ethanol, i-acetone, i-polyether kanye

ama-polyester polyols, ancibilika kancane ku-ether, ahlanganiswe nama-aliphatic nama-hydrocarbon anephunga elimnandi.

Ukuhlanzeka kwemikhiqizo yezimboni ngokuvamile kukhulu kuno-99% noma 99.5%, umswakama ungaphansi kuka-0.1%, inani lesulfure alikho ngaphezu kuka-0.1%, i-chroma (APHA) ingaphansi kuka-25.

Kunezindlela ezingaphezu kuka-20 zokukhiqiza ze-1, 4-butanediol, kodwa zi-5 ~ 6 kuphela ezithuthukisiwe.Njengamanje, izindlela eziyinhloko zezimboni zihlanganisa indlela ye-Reppe eguquliwe, indlela ye-maleic anhydride hydrogenation, indlela ye-maleic anhydride esterification hydrogenation, indlela ye-propylene oxide kanye nendlela ye-butadiene.

Izimpawu kanye nokusetshenziswa

I-1, i-4-butanediol iyikhemikhali eyisisekelo namakhemikhali ahlanzekile, asetshenziswa kabanzi ekukhiqizeni amapulasitiki nobunjiniyela be-PBT, i-Synthesis ye-tetrahydrofuran (THF), i-polytetramethylene ether diol (PTMEG, etholwe yi-THF polymerization), i-polyether ephezulu yokusebenza kwe-elastomer kanye ne-spandex elastic fiber (PTMEG kanye ne-disocyanate synthesis), i-polyester resin engagcwalisiwe, i-polyester polyol, i-butanediol ether solvent, kanye nemboni yezokwelapha nezimonyo.I-1, i-4-butanediol ingasetshenziswa futhi ukukhiqiza i-N-methylpyrrolidone, i-adipic acid, i-acetal, i-anhydride maleic, i-1, i-3-butadiene njalonjalo.

I-Y-butanolactone, umkhiqizo ongezansi we-1, i-4-butanediol, iyinto eluhlaza yokukhiqizwa kwemikhiqizo ye-2-pyrrolidone ne-N-methylpyrrolidone.Kulokhu, uchungechunge lwemikhiqizo ephezulu ye-value-added efana ne-vinyl pyrrolidone ne-polyvinyl pyrrolidone itholakala, esetshenziswa kabanzi emkhakheni wezibulala-zinambuzane, imithi kanye nezimonyo.

Emkhakheni we-POLYURETHANE, ngaphezu kokuhlanganiswa kwe-polytetrahydrofuran polyol, ikakhulukazi esetshenziselwa ukuhlanganiswa kwe-polyester diol futhi isetshenziswe njenge-elastomer, izicathulo ze-microporous polyurethane chain extender, i-polybutanediol adipate ester polyurethane ine-crystallization enhle.

Ubuthi beUbuthi obuphansi, ubuthi obunzima bomlomo LD50= 1500-1780mg/kg kumagundane, ukumuncwa kwe-transdermal ubuthi ubuthi bonogwaja LD50>2000mg/kg.

Okwedlule: Ukukhiqizwa kwe-1, 4-butanediol (BDO) ngendlela ye-maleic anhydride

Olandelayo: Inqubo yokukhiqiza utshwala be-Propargyl kanye nokuhlaziywa kwemakethe

Bhala umyalezo wakho lapha futhi usithumelele wona