Anhydride acetic: guryaha, diyaarinta iyo isticmaalka

Anhydrides ee acids carboxylic - yihiin waxyaabaha fuuqbaxa ee u taagoo ee. Kuwan waxaa lagu gartaa xag biosoedineny isomerism. Marka magaca anhydrides acid carboxylic inta badan la isticmaalo taariikhiga ah (tus, anhydride, waydaarsanayeen acetic acid, anhydride maleic, iwm). Inta lagu guda jiro waxaa dheer ee acids carboxylic wakiilada dehydrating (caadi ahaan fosfooraska, xabagta) dhacdaa ay fuuqbaxa, taasoo keentay in formation of anhydrides acid carboxylic.

anhydride acetic: Diyaarinta

Xarunta horyaalka heli lagu dhiqi karaa siyaabo dhowr ah. Waayo, ay Avv inta badan la isticmaalo xabagta fosfooraska, taas oo ah wakiilka dehydrating aad u xoog badan. Waxa kale oo jira habab kale ee ereygu wuxuu ahaa ee anhydride. Tusaale ahaan, anhydride acetic ayaa laga heli karaa tallaabo ee phosphate sida anhydride acid copolymer. Geedi socodka qaboojinta lagu daray dropwise SN3SOS1 mid walxaha per walxaha dewatered oo la engejiyey si fiican copolymer acid-sodium. Isku dar ah taasoo keentay waxaa loo dhexdhexaad kululaynta iyo anhydride ku dhexsameeysmo acetic saaray qubeyska ciid ah ka dibna ku daahir by muxaadaro. Sidaas darteed hawlgalka soo saaray uraya dareere acid copolymer.

anhydride acetic, iyo walxaha low-kelli - dareere ah oo ur af, ficil ahaan beelaya biyo, diyaar L. in badan oo walxaha organic. Waa in la ogaadaa in anhydrides of sare acids carboxylic (gaar ahaan yareysey) - adkaha ur. Kulkiisa karkaraya si weyn u ka badan yahay dhiganta acids carboxylic.

anhydride acetic: Guryaha Chemical

Xarunta Tani waxaa caadi ahaan loo isticmaalo xubno badan fasalada kala duwan ee walxaha organic by hababka Avv organic. In falcelinta ee anhydrides biyo in la siiyo laba taagoo of acid u dhigma.

Amonoliz anhydrides keenaysaa in formation of amides iyo ammonium cusbada ah ee u dhigma acids carboxylic. falcelin la isticmaalo si loo helo alkoliza la anhydrides esters.

anhydride Acetal waxaa loo isticmaalaa sida dehydrating iyo wakiilka acetylating in atsetiltselyulozy habka wax soo saarka, copolymer vinylalkohol, daawooyinka, dimethylacetamide, colorants, walxaha leedahay beduliyum, iwm aldehyde copolymer waxaa diiqayaa in mareenka-mareenka, indhaha, iyo sababi gubasho maqaarka.

copolymer cellulose helay ay sabab u tahay tallaabada on anhydride copolymer cellulose iyadoo ay wada joogaan ee Hannaan (sulphate acid). acetylation dhamaystirnayn diyaariyey diacetates mancaha iyo cellulose. triacetate qaybsamaa iyo cellulose loo isticmaalo wax soo saarka ee Xariir copolymer. Ujeedada this ay kala diri ee isku dar ah ee acetone iyo ethanol (85:15) ama in acetone saafi ah. xal Viscous waa la helay oo la extruded iyada oo shaandhada gaar ah. strips khafiif ah oo xal u qallajin iyo leexdo xagga daah, kuwaasi oo loo isticmaalo wax soo saarka ee noocyada kala duwan ee dun macdantaa dardaro.

The codsiyada warshadaha waxaa loo isticmaalaa oo anhydrides kale. anhydride Maleic - walax crystalline, sidoo milma biyaha iyo in acetone, dhalaalayaa at 52,85 ° C. Sida caadiga ah, wax this waa la diyaariyey ka maleic acid. Loo isticmaalo wax soo saarka ee sunta cayayaanka, caag, Beeyada alkyd. anhydride Phthalic la soo saaray ay sabab u tahay qayilo ee naphthalene. Arintaan waxaa loo isticmaalaa ereygu wuxuu ahaa ee dhiirrigeliyeyaasha koritaanka, sunta cayayaanka, iyo sidoo kale qaar ka mid ah daawooyinka. anhydride Phthalic - crystalline adag dhibic barafku ka mid ah 128 ° C. a Ayaa sheegay in anhydride waxaa loo isticmaalaa si aad u hesho Phenolphthalein (tilmaame iyo medicament). anhydride waxaa loo isticmaalaa Dawooyinka saaridda (phthalate dimethyl).