1, iipropati ze-4-butanediol Umfanekiso obonakalayo

I-1, iipropati ze-4-butanediol

Inkcazelo emfutshane:

1, 4-butanediol

Isibizo: 1, 4-dihydroxybutane.

Ushunqulelo: BDO,BD,BG.

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

I-molecular formula yi-C4H10O2 kunye ne-molecular weight 90.12.Inombolo ye-CAS yi-110-63-4, kunye nenombolo ye-EINECS yi-203-785-6.

Ifomula yolwakhiwo: HOCH2CH2CH2CH2OH.

Thumela i-imeyile kuthi

Iinkcukacha zeMveliso

Iithegi zeMveliso

Iimpawu zomzimba kunye neekhemikhali

Ulwelo olunamafutha angenambala, olunokutsha, lunyibilika emanzini, i-methanol, i-ethanol, i-acetone, i-polyether kunye

iipolyester polyols, zinyibilika kancinane kwi-ether, zingadibanisi ne-aliphatic kunye ne-aromatic hydrocarbons.

Ukucoceka kweemveliso zamashishini ngokuqhelekileyo kukhulu kune-99% okanye i-99.5%, ukufuma kungaphantsi kwe-0.1%, ixabiso lesulfure alikho ngaphezu kwe-0.1%, i-chroma (APHA) ingaphantsi kwe-25.

Kukho iindlela ezingaphezu kwe-20 zokuvelisa i-1, i-4-butanediol, kodwa kuphela i-5 ~ 6 i-industrialized.Okwangoku, iindlela eziphambili zoshishino ziquka indlela yeReppe elungisiweyo, indlela ye-maleic anhydride hydrogenation, indlela ye-maleic anhydride esterification hydrogenation, indlela ye-propylene oxide kunye nendlela ye-butadiene.

Iimpawu kunye nokuSetyenziswa

I-1, i-4-butanediol iyikhemikhali esisiseko kunye neyona nto ilungileyo, isetyenziswe ngokubanzi kwimveliso ye-PBT yobunjineli beplastiki kunye neefayili, i-Synthesis ye-tetrahydrofuran (THF), i-polytetramethylene ether diol (PTMEG, efunyenwe yi-THF polymerization), i-polyether ephezulu yokusebenza kwe-elastomer. kunye ne-spandex elastic fiber (i-PTMEG kunye ne-disocyanate synthesis), i-polyester resin engaxutywanga, i-polyester polyol, i-butanediol ether solvent, kunye ne-pharmaceutical and cosmetic industry.I-1, i-4-butanediol ingasetyenziselwa ukuvelisa i-N-methylpyrrolidone, i-adipic acid, i-acetal, i-anhydride maleic, i-1, i-3-butadiene kunye nokunye.

I-Y-butanolactone, imveliso engaphantsi kwe-1, i-4-butanediol, yinto eluhlaza yokuveliswa kwemveliso ye-2-pyrrolidone kunye ne-N-methylpyrrolidone.Kule nto, uchungechunge lweemveliso eziphezulu zexabiso elongezelelweyo ezifana ne-vinyl pyrrolidone kunye ne-polyvinyl pyrrolidone zithathwe, ezisetyenziswa ngokubanzi kwiinkalo ze-pesticides, iyeza kunye nezimonyo.

Kwintsimi ye-POLYURETHANE, ukongeza kwi-synthesis ye-polytetrahydrofuran polyol, esetyenziswa kakhulu kwi-synthesis ye-polyester diol kwaye isetyenziswe njenge-elastomer, i-microporous polyurethane shoes chain extender, i-polybutanediol adipate ester polyurethane ine-crystallization enhle.

Ubutyhefu beUbuthi obuphantsi, ixabiso letyhefu ebukhali yomlomo LD50= 1500-1780mg/kg kwiimpuku, ukufunxa kwi-transdermal toxicity value yomvundla LD50>2000mg/kg.

Ngaphambili: Ukuveliswa kwe-1, i-4-butanediol (BDO) ngendlela ye-maleic anhydride

Okulandelayo: Inkqubo yokuveliswa kotywala bePropargyl kunye nohlalutyo lwemarike

Bhala umyalezo wakho apha kwaye uwuthumele kuthi