1, 4-butanediol āhuatanga

Whakaahuatanga Poto:

1, 4-butanediol

Ingoa ingoa: 1, 4-dihydroxybutane.

Whakapoto: BDO,BD,BG.

Ingoa Ingarihi: 1, 4-Butanediol;1, 4 – butylene glycol;1, 4 – dihydroxybutane.

Ko te tātai rāpoi ko C4H10O2 me te taumaha rāpoi he 90.12.Ko te nama CAS ko 110-63-4, ko te nama EINECS ko 203-785-6.

tātai hanganga: HOCH2CH2CH2CH2OH.

Tukuna he imeera ki a matou

Taipitopito Hua

Tohu Hua

Ngā āhuatanga ā-tinana me te matū

He wai hinuhinu kore tae, he mura, he wairewa ki te wai, mewaro, waiwaro, acetone, polyether me

polyester polyols, paku wairewa i roto i te etera, imscible ki te waiwaro aliphatic me te kakara.

Ko te ma o nga hua ahumahi he nui ake i te 99%, 99.5% ranei, he iti ake te makuku i te 0.1%, ko te uara whanariki kaore i neke atu i te 0.1%, ko te chroma (APHA) he iti iho i te 25.

Neke atu i te 20 nga tikanga whakaputa o te 1, 4-butanediol, engari ko te 5 ~ 6 anake kei te mahi ahumahi.I tenei wa, ko nga tikanga nui o te ahumahi ko te tikanga Reppe whakarereke, ko te tikanga whakangao hauwai maleic anhydride, ko te tikanga whakangao hauwai anhydride maleic, ko te tikanga propylene oxide me te tikanga butadiene.

Nga Ahuatanga me nga Whakamahinga

Ko te 1, 4-butanediol he matū taketake me te matū pai rawa atu, e whakamahia nuitia ana i roto i te hanga PBT engineering kirihou me te muka, Synthesis o tetrahydrofuran (THF), polytetramethylene ether diol (PTMEG, i whiwhihia e te THF polymerization), polyether elastomer mahi teitei. me te muka elastic spandex (PTMEG me te diisocyanate synthesis), polyester resin hamanga, polyester polyol, butanediol ether solvent, me te ahumahi rongoa me te whakapaipai.Ka taea hoki te whakamahi 1, 4-butanediol ki te whakaputa N-methylpyrrolidone, waikawa adipic, acetal, maleic anhydride, 1, 3-butadiene me etahi atu.

Ko te Y-butanolactone, te hua o raro o te 1, 4-butanediol, ko te rauemi mata mo te hanga o nga hua 2-pyrrolidone me N-methylpyrrolidone.Mai i tenei, ka puta mai he raupapa o nga hua utu nui penei i te vinyl pyrrolidone me te polyvinyl pyrrolidone, e whakamahia nuitia ana i roto i nga waahi o te pesticides, te rongoa me te whakapaipai.

I roto i te mara o POLYURETHANE, i roto i te tua ki te kōtuitanga o polytetrahydrofuran polyol, te nuinga whakamahia i roto i te kōtuitanga o te polyester diol ka whakamahia rite elastomer, microporous hu polyurethane mekameka extender, polybutanediol adipate hākawa polyurethane he whātioatanga pai.

Te paitini oTe paitini iti, te uara paitini whakapeka o te waha LD50= 1500-1780mg/kg i roto i te kiore, transdermal absorption uara paitini o te rapeti LD50>2000mg/kg.

Tōmua: Te whakaputanga o te 1, 4-butanediol (BDO) ma te tikanga maleic anhydride

Panuku: Te tukanga whakaputa waipiro Propargyl me te tātari maakete

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