Daim ntawv dawb huv ntawm phosphoric acid yog cov khoom dawb ntawm chav tsev kub, tab sis pib yaj thiab tsim cov kua nplaum uas tsis muaj xim thaum kub txog 42.35 degree. Cov tshuaj no feem ntau yog anhydrous ntawm chav tsev kub, txhais tau tias nws tsis muaj dej noo. Nws muaj cov qauv polar molecular, tab sis qhov no txhais tau tias nws yog dej soluble heev.
Raws li cov tshuaj reagent, cov kua qaub no feem ntau tuaj yeem hloov mus rau hauv cov tshuaj aqueous. Nyob ntawm seb cov kua qaub ntau npaum li cas, nws tuaj yeem muaj peev xwm hydrogen ion concentration (pH) ntawm 1.08-7 00. 85 feem pua phosphoric acid yog corrosive tab sis tuaj yeem ua tsis muaj tshuaj lom los ntawm dilution.
Ib qho ntawm feem ntau siv cov kua qaub no yog ua zaub mov additive. Hauv Tebchaws Europe, nws cov khoom noj khoom haus ntxiv tus lej yog E338. Nws yog feem ntau siv rau acidify zaub mov thiab dej haus, cola dej haus ua piv txwv. Ob leeg Coca-Cola thiab Pepsi siv phosphoric acid los muab cov dej qab zib me ntsis. Nws yog qhov kev xaiv thib ob tshaj plaws tom qab citric acid vim nws tus nqi qis ntawm kev siv ntawm qhov loj.
Qee qhov kev tshawb fawb tau pom qhov sib txuas ntawm phosphoric acid thiab poob ntawm pob txha ceev. Ib txoj kev tshawb fawb luam tawm nyob rau hauv American Journal of Clinical Nutrition tau taw qhia tias cov poj niam uas haus dej haus cola txhua hnub muaj qhov tsis zoo ntawm cov pob txha. Tab sis cov txiaj ntsig ntawm lwm txoj kev tshawb fawb, nyiaj txiag los ntawm PepsiCo, thov tias qhov tsis muaj phosphorus hauv lub cev tuaj yeem ua rau cov pob txha qis. Kev tshawb nrhiav ntxiv tau pom tias cov pob txha poob yog tshwm sim los ntawm caffeine. Ib txoj kev tshawb fawb xyoo 2001 raws li cov poj niam pom tias cov pob txha poob hauv cov poj niam uas haus peb khob Coke ib hnub yog cuam tshuam rau lawv cov kev hloov cov mis nyuj, tsis yog los ntawm kev noj phosphoric acid lossis caffeine.
Cov kua qaub no kuj tau txuas rau lub raum pob zeb thiab mob raum mob. Raws nraim yog vim li cas thiab seb phosphoric acid puas koom nrog tsis to taub zoo, txawm hais tias qee qhov kev tshawb fawb taw qhia txog kev noj cov cola.