Citric Acid, nrog lub npe tshuaj 2-hydroxypropane-1,2,3-tricarboxylic acid, yog ib qho tshwm sim ntawm tricarboxylic acid. Nws yog dav pom nyob rau hauv citrus txiv hmab txiv ntoo xws li txiv qaub, txiv kab ntxwv, thiab pineapples, thiab yog ib qho ntawm feem ntau siv cov organic acids hauv cov zaub mov, tshuaj, tshuaj engineering, kev tiv thaiv ib puag ncig thiab lwm yam.
Citric acid zoo nkaus li tsis muaj xim tsis muaj pob tshab los yog dawb crystalline hmoov, tsis muaj ntxhiab, muaj zog acidic saj, thiab yooj yim soluble hauv dej thiab ethanol. Nws nta ib qho me me thiab ntshiab qaub saj, zoo heev solubility, muaj zog chelate muaj peev xwm, thiab kev nyab xeeb siab. Nrog rau cov khoom siv tshuaj ruaj khov, nws muaj ntau yam haujlwm xws li acidity tswj, antiseptic preservation, antioxidant synergism, hlau chelation, thiab pH hloov, ua rau nws muaj ntau yam ntsuab tshuaj raw khoom.
Hauv kev lag luam zaub mov thiab dej haus, citric acid yog cov khoom noj khoom haus acidulant siv thoob plaws ntiaj teb. Nws yog siv dav hauv cov dej qab zib carbonated, kua txiv hmab txiv ntoo, cawv, khoom qab zib, cov khoom noj kaus poom, cov khoom ci thiab lwm yam khoom. Nws tsis tsuas yog muab lub zog tshiab thiab qaub saj los txhim kho tsw, tab sis kuj ua raws li kev khaws cia rau inhibit microbial kev loj hlob thiab antioxidant synergist kom ncua lub txee lub neej ntawm cov khoom noj khoom haus, ua rau nws yog ib qho tseem ceeb hauv kev lag luam khoom noj khoom haus.
Hauv kev lag luam tshuaj thiab tshuaj txhua hnub, citric acid tuaj yeem siv los kho cov kua qaub - puag ncig ntawm kev txhaj tshuaj thiab tshuaj hauv qhov ncauj, thiab txhawb kev nqus ntawm cov zaub mov xws li calcium thiab hlau hauv tib neeg lub cev. Hauv cov tshuaj niaj hnub, nws yog ib qho khoom muaj nyob rau hauv cov ntxhua khaub ncaws ntxhua khaub ncaws, xab npum ntxuav tais diav thiab cov khoom tu tawv nqaij, pab ua kom dej muag, tshem tawm nplai, thiab kho pH tus nqi, thaum muab cov tshuaj ntxuav tes kom huv thiab tawv nqaij - brightening los.
Hauv cov ntawv thov kev lag luam thiab kev tiv thaiv ib puag ncig, ua tsaug rau nws lub peev xwm zoo heev ntawm cov hlau chelates, citric acid yog siv dav hauv kev ntxuav hlau, kav dej descaling thiab kev kho dej. Nws tuaj yeem tshem tawm cov nplai thiab xeb, hloov cov phosphorus ib txwm muaj - muaj cov tshuaj ntxuav kom zoo rau ib puag ncig. Nws kuj yog siv los ua pH adjuster, dyeing auxiliary, tsis thiab ntau dua hauv textiles, papermaking, chemical synthesis thiab lwm yam lag luam, nrog rau ntau yam kev siv.
Tam sim no, industrially ua citric acid yog tsim los ntawm microbial fermentation, siv cov ntaub ntawv txuas ntxiv dua tshiab xws li pob kws hmoov nplej thiab molasses. Cov txheej txheem tsim khoom yog eco- tus phooj ywg, thiab cov khoom lag luam muaj kev purity siab thiab muaj kev nyab xeeb, ua raws li qib khoom noj thoob ntiaj teb, qib tshuaj thiab qib kev lag luam. Nws tau dhau los ua cov khoom siv tshuaj tsis tseem ceeb hauv cov khoom siv thoob ntiaj teb.