Magaca kiimikada eeacetic acidwaa acetic acid, formula kiimikaad CH3COOH, iyo waxa ku jira 99% acetic acid waxa lagu qurxiyey qaab baraf ka hooseeya 16 ° C, sidoo kale loo yaqaan glacial acetic acid. Aashitada Acetic waa mid aan midab lahayn, biyo-milmi kara, waxa lagu simi karaa biyo qayb kasta, waa kacsan tahay, waa asiidh organic daciif ah.
Sida aashitada organic, acetic acid ma aha oo kaliya si ballaaran loo isticmaalo isku-dhafka organic, warshadaha kiimikada organic, cuntada, daawada iyo warshadaha kale, laakiin sidoo kale loo isticmaalo in lagu dhaqo iyo warshadaha dheehidda.
Codsiga acetic acid ee warshadaha dhaqida iyo midabaynta
01
Shaqada kala dirida aysiidhka ee acetic acid ee ka saarista wasakhda
Aashitada Acetic sida khalka organic, waxay milmi kartaa tannic acid, acid miraha iyo sifooyinka kale ee acid organic, wasakhda cawska, wasakhda casiir (sida dhididka miraha, casiirka qaraha, casiirka yaanyada, cabitaanka cabitaanka fudud, iwm.), Wasaqda daawada, basbaaska saliidda iyo wasakhaha kale, wasakhyadani waxay ka kooban yihiin maaddooyinka khalka organic, acetic acid sida wasakh ka saarida, waxay ka saari kartaa maaddooyinka asiidhka organic ee wasakhda, sida maaddooyinka midabka leh ee wasakhda, Ka dibna daaweynta bleaching oxidative, dhammaan waa laga saari karaa.
02
Ka-hortagga aysiidhka-saldhigga ee acetic acid ee warshadaynta dhaqidda iyo midabaynta
Acid acid lafteedu aad bay usiidh ahaan u liidataa waxaana lagu dhex milmi karaa saldhigyo.
(1) Ka saarista wasakhda kiimikada, isticmaalka hantidaan waxay ka saari kartaa wasakhda alkaline, sida wasakhda qaxwada, wasakhda shaaha, iyo wasakhda daroogada qaarkood.
(2) Dhexdhexaadinta acetic acid iyo alkali waxay sidoo kale dib u soo celin kartaa midabka dharka ee ay sababtay saameynta alkali.
(3) Isticmaalka aysidhka daciifka ah ee acetic acid waxay sidoo kale dedejin kartaa falcelinta biliijka ee qaar ka mid ah warankiilada dhimista ee habka warankiilada, sababtoo ah qaar ka mid ah warankiilada dhimista waxay soo dedejin kartaa burburka hoos xaaladaha khalka waxayna sii daayaan qodobka bleaching, sidaas darteed, hagaajinta qiimaha PH ee xalka bleaching leh acetic acid waxay soo dedejin kartaa habka warankiilada.
(4) Aashitada acetic acid waxaa loo isticmaalaa in lagu hagaajiyo aashitada iyo alkali ee dharka dharka, alaabta dharkana waxaa lagu daaweeyaa aashitada, taas oo soo celin karta xaaladda jilicsan ee alaabta dharka.
(5) Dharka dhogorta leh ee dhogorta leh, habka feeraha, sababtoo ah heerkulka feeraha ayaa aad u sarreeya, taas oo keentay dhaawaca dhogorta dhogorta, ifafaale aurora, oo leh acetic acid dilute waxay soo celin kartaa nudaha fiber dhogorta, sidaas darteed, acetic acid waxay sidoo kale wax ka qaban kartaa dharka. iyadoo ay ugu wacan tahay ifafaale aurora oo feeraysa.
03
Midabka biyaha-milmi kara oo ay ku jiraan kooxaha hydroxyl iyo sulfonic acid, dharka fiber-ka ee leh caabbinta alkali liidata (sida xariirta, rayon, dhogorta), oo hoos yimaada xaaladda khalka, waxay ku habboon tahay midabaynta iyo hagaajinta midabka fiilooyinka.
Sidaa darteed, dharka qaarkood oo leh caabbinta alkaline liidata iyo si fudud u libdhisan habka dhaqidda ayaa lagu dari karaa qadar yar oo acetic acid ah saabuunta dharka si loo hagaajiyo midabka dharka.
Laga soo bilaabo aragtidan, acetic acid waxaa si ballaaran loo isticmaalaa warshadaha dhaqidda iyo rinjiyeynta, laakiin habka codsiga waa in sidoo kale fiiro gaar ah u yeesho arrimaha soo socda.
Dharka ay ku jiraan fiilooyinka acetic acid, markaad isticmaalayso acetic acid si aad wasakhda uga saarto, waa inaad taxaddar dheeraad ah u yeelataa inaad fiiro gaar ah u yeelatid fiirsashada acetic acid ma aha mid aad u sarreeya. Tani waa sababta oo ah fiber acetate wuxuu ka samaysan yahay alwaax, suuf suuf ah iyo walxaha kale ee cellulosic iyo acetic acid iyo acetate, caabbinta liidata ee khalka, aashitada xoogga leh waxay hoos u dhigi kartaa fiber acetate. Marka wasakhaha lagu dhejiyo fiilooyinka acetate iyo dharka ay ku jiraan fiilooyinka acetate, laba dhibcood waa in la ogaadaa:
(1) Isticmaalka badbaadada leh ee acetic acid waa 28%.
(2) Dhibcaha tijaabada ah waa in la sameeyaa ka hor intaan la isticmaalin, ha kuleylin marka la isticmaalo, isla markiiba biyo raaci ka dib isticmaalka ama ka takhalus alkali daciif ah.
Ka taxadarida isticmaalka acetic acid waa sida soo socota:
(1) Iska ilaali taabashada indhaha, haddii aad la xiriirto fiirsashada sare ee aashitada khamiirsan, isla markiiba biyo ku raaci.
(2) Xidhiidhka qalabka biraha waa in laga fogaadaa si loo soo saaro daxalka.
(3) Isdhexgalka daroogada iyo iswaafajinta daroogada alkaline waxay ku dhici kartaa falcelinta dhexdhexaadinta iyo fashilka.
(4) Aashitada loo yaqaan 'acetic acid' ee falcelinta xun waa xanaaq, waxayna daxalisaa maqaarka iyo xuubka xabkaha oo aad u badan.
Waqtiga boostada: Jun-21-2024