Zogulitsa
Adipic Acid-yomwe imagwiritsidwa ntchito ngati mankhwala/organic synthesis/medicine/lubricant
Kufotokozera Mwachidule:
Nambala ya CAS:124-04-9
Mawu achi China:mafuta acid
Dzina lachingerezi:Adipic asidi.
Structural formula:
Ntchito
Adipic acid imatha kupangidwa ndi mchere, kusintha kwa esterification, machitidwe amidation, ndi zina zotero, ndipo imatha kupangidwa ndi ma diamine kapena ma glycols kuti apange ma polima apamwamba kwambiri.Adipic acid ndi dicarboxylic acid yofunika kwambiri m'mafakitale.Zimagwira ntchito yofunika kwambiri pakupanga mankhwala, mafakitale a organic synthesis, mankhwala, ndi kupanga mafuta.Adipic asidi ndi zopangira mankhwala, kuyeretsa yisiti, mankhwala ophera tizilombo, zomatira, zikopa zopangidwa, utoto wopangira ndi mafuta onunkhira.
Adipic asidi makamaka ntchito ngati zopangira nayiloni 66 ndi mapulasitiki engineering.Amagwiritsidwanso ntchito popanga zinthu zosiyanasiyana za ester.Amagwiritsidwanso ntchito ngati zopangira za polyurethane elastomers komanso ngati acidifier pazakudya ndi zakumwa zosiyanasiyana.Pamwamba pa citric acid ndi tartaric acid.
Adipic asidi ndi zopangira mankhwala, kuyeretsa yisiti, mankhwala ophera tizilombo, zomatira, zikopa zopangidwa, utoto wopangira ndi mafuta onunkhira.
Adipic acid imakhala ndi kukoma kofewa komanso kokhalitsa, ndipo pH mtengo umasintha pang'ono m'magulu akuluakulu.Ndi bwino pH value regulator.GB2760-2007 ikunena kuti kuchuluka kwa kugwiritsidwa ntchito kwa mankhwalawa pazakumwa zolimba ndi 0.01g/kg;itha kugwiritsidwanso ntchito ngati odzola ndi odzola ufa, ndipo kuchuluka kwa ntchito kwa odzola ndi 0.01g/kg;ikagwiritsidwa ntchito popanga mafuta odzola, imatha kupanikizidwa Sinthani angapo kuti muwonjezere kugwiritsa ntchito.
Adipic acid kapena hexanedioic acid ndi organic pawiri ndi chilinganizo
(CH2)4(COOH)2.Kuchokera ku mafakitale, ndi dicarboxylic acid yofunika kwambiri: pafupifupi ma kilogalamu 2.5 biliyoni a ufa wa crystalline woyera amapangidwa chaka ndi chaka, makamaka ngati kalambulabwalo wa kupanga nayiloni.Asidi adipic mwina samapezeka mwachilengedwe, koma amadziwika kuti opangidwa ndi E355.
Pafupifupi 60% ya makilogalamu 2.5 biliyoni a adipic acid omwe amapangidwa chaka chilichonse amagwiritsidwa ntchito ngati monoma kupanga nayiloni ndi polycondensation reaction ndi hexamethylene diamine kupanga nayiloni 66. Ntchito zina zazikulu zimaphatikizaponso ma polima;ndi monoma kupanga polyurethane ndi esters ake ndi plasticizers, makamaka PVC.
Kugwiritsa ntchito
Adipic asidi makamaka ntchito ngati zopangira nayiloni 66 ndi mapulasitiki engineering.Amagwiritsidwanso ntchito popanga zinthu zosiyanasiyana za ester.Amagwiritsidwanso ntchito ngati zopangira za polyurethane elastomers komanso ngati acidifier pazakudya ndi zakumwa zosiyanasiyana.Pamwamba pa citric acid ndi tartaric acid.
Adipic asidi ndi zopangira mankhwala, kuyeretsa yisiti, mankhwala ophera tizilombo, zomatira, zikopa zopangidwa, utoto wopangira ndi mafuta onunkhira.
Adipic acid imakhala ndi kukoma kofewa komanso kokhalitsa, ndipo pH mtengo umasintha pang'ono m'magulu akuluakulu.Ndi bwino pH value regulator.GB2760-2007 ikunena kuti kuchuluka kwa kugwiritsidwa ntchito kwa mankhwalawa pazakumwa zolimba ndi 0.01g/kg;itha kugwiritsidwanso ntchito ngati odzola ndi odzola ufa, ndipo kuchuluka kwa ntchito kwa odzola ndi 0.01g/kg;ikagwiritsidwa ntchito popanga mafuta odzola, imatha kupanikizidwa Sinthani angapo kuti muwonjezere kugwiritsa ntchito.
Mu mankhwala:
Adipic acid adaphatikizidwa m'mapiritsi a matrix opangidwa ndi kumasulidwa kuti apeze kumasulidwa kodziyimira pawokha kwa pH yamankhwala omwe ali ofooka komanso opanda acidic.Zaphatikizidwanso mu zokutira za polymeric za hydrophilic monolithic system kuti zisinthe intragel pH, zomwe zimapangitsa kuti ziro-order imatulutse mankhwala a hydrophilic.Kuwonongeka kwa matumbo pH kwa enteric polymer shellac kwanenedwa kuti kukuyenda bwino pamene adipic acid imagwiritsidwa ntchito ngati pore-forming agent popanda kusokoneza kutulutsidwa kwa acidic media.Mapangidwe ena owongolera otulutsidwa aphatikiza adipic acid ndi cholinga chopeza mbiri yotulutsidwa mochedwa.
Mu zakudya:
Ma adipic acid ochepa koma ofunikira amagwiritsidwa ntchito ngati chakudya ngati chokometsera komanso chothandizira.Amagwiritsidwa ntchito mu calcium carbonate antacids kuti apange tart.Monga acidulant mu kuphika ufa, amapewa osafunika hygroscopic katundu wa tartaric acid.Adipic acid, osowa m'chilengedwe, amapezeka mwachilengedwe mu beets, koma izi sizothandiza pazamalonda poyerekeza ndi kaphatikizidwe ka mafakitale.
Chitetezo:
Adipic acid, monganso ma carboxylic acid ambiri, ndiwowopsa kwambiri pakhungu.Ndiwowopsa pang'ono, wokhala ndi mlingo wakupha wapakatikati wa 3600 mg/kg pakumwa pakamwa ndi makoswe.
Zachilengedwe:
Kupanga kwa adipic acid kumalumikizidwa ndi mpweya wa N2O, wamphamvu
mpweya wowonjezera kutentha ndi chifukwa cha kuwonongeka kwa ozoni wa stratospheric.Ku adipic acid opanga DuPont ndi Rhodia (tsopano Invista ndi Solvay, motsatana), njira zakhazikitsidwa kuti zisinthe mochititsa chidwi kuti nitrous oxide kukhala zinthu zopanda vuto:
2 N2O → 2 N2 + O2