1, 4-butanediol guryaha

Sharaxaad Gaaban:

1, 4-butanediol

Magacyada: 1, 4-dihydroxybutane.

Soo gaabinta: BDO,BD,BG.

Magaca Ingiriisiga: 1, 4-Butanediol;1, 4 - butylene glycol;1, 4 - dihydroxybutane.

Qaaciddada molecular waa C4H10O2 miisaankuna waa 90.12.Lambarka CAS waa 110-63-4, lambarka EINECS waa 203-785-6.

Qaab dhismeedka: HOCH2CH2CH2CH2OH.

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sifooyinka jirka iyo kiimikaad

Dareere saliid leh oo aan midab lahayn, guban kara, biyaha ku milma, methanol, ethanol, acetone, polyeter iyo

polyester polyols, wax yar ku milmay eter, aan la jaan qaadi karin alifleyda iyo hydrocarbons udgoon.

Nadiifinta alaabooyinka warshaduhu guud ahaan way ka weyn yihiin 99% ama 99.5%, qoyaanku waa ka yar yahay 0.1%, qiimaha baaruudku kama badna 0.1%, chroma (APHA) waa ka yar yahay 25.

Waxaa jira in ka badan 20 hababka wax soo saarka ee 1, 4-butanediol, laakiin kaliya 5 ~ 6 ayaa dhab ahaantii warshadaha.Waqtigan xaadirka ah, hababka ugu muhiimsan ee warshadaha waxaa ka mid ah habka Reppe oo la beddelay, habka hydrogenation maleic anhydride, habka hydrogenation esterification maleic anhydride, habka propylene oxide iyo habka butadiene.

Tilmaamaha iyo Isticmaalka

1, 4-butanediol waa kiimiko aasaasi ah iyo walxo cayriin ah oo kiimiko ah, oo si ballaaran loogu isticmaalo soosaarka balaastikada injineernimada PBT iyo fiilooyinka, Synthesis of tetrahydrofuran (THF), polytetramethylene ether diol (PTMEG, oo ay heshay THF polymerization), elastomer waxqabadka sare ee polyether iyo spandex elastic fiber (PTMEG iyo diisocyanate synthesis), xabagta polyester aan saturated, polyester polyol, dareere ether butanediol, iyo sidoo kale warshadaha dawooyinka iyo qurxinta.1, 4-butanediol sidoo kale waxaa loo isticmaali karaa in lagu soo saaro N-methylpyrrolidone, adipic acid, acetal, maleic anhydride, 1, 3-butadiene iyo wixii la mid ah.

Y-butanolactone, sheyga hoose ee 1, 4-butanediol, waa alaabta ceeriin ee wax soo saarka 2-pyrrolidone iyo N-methylpyrrolidone.Laga soo bilaabo tan, alaabooyin taxane ah oo qiimo sare leh sida vinyl pyrrolidone iyo polyvinyl pyrrolidone ayaa laga soo saaray, kuwaas oo si weyn loogu isticmaalo beeraha cayayaanka, daawooyinka iyo qurxinta.

In berrinkii POLYURETHANE, marka lagu daro falgalka of polytetrahydrofuran polyol, inta badan loo isticmaalo in synthesis of polyester diol oo loo isticmaalo sida elastomer, microporous kabaha polyurethane silsilad fidiyaha, polybutanediol adipate ester polyurethane leeyahay crystallization wanaagsan.

Sunta eeSunta hoose, qiimaha sunta ba'an ee afka LD50= 1500-1780mg/kg ee jiirka, qiimaha nuugista transdermal ee sunta bakayle LD50>2000mg/kg.

Hore: Wax soo saarka 1, 4-butanediol (BDO) ee habka anhydride lab

Xiga: Habka wax soo saarka khamriga Propargyl iyo falanqaynta suuqa

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