txheem
Formic acid (Formic acid, methane acid, E236).
Formic acid yog monobasic carboxylic acid sau npe ua zaub mov ntxiv nrog rau kev faib tawm thoob ntiaj teb code E236, uas yog siv los ua cov khoom noj. Nws yog suav hais tias yog thawj tus neeg sawv cev hauv koob ntawm saturated monobasic carboxylic acids.
Cov tshuaj formula yog HCOOH.
Cov yam ntxwv ntawm Formic Acid
Formic acid yog ib qho ntshiab, tsis muaj xim, tsis muaj ntxhiab, thiab qaub-tasting kua. Cov tshuaj muaj cov cuab yeej ntawm dissolving hauv glycerin, benzene thiab acetone thiab sib tov nrog dej thiab ethanol. Formic acid tau muaj npe tom qab nws raug cais los ntawm tus neeg Askiv Askiv John Ray los ntawm ntau tus ntsaum liab hav zoov (calorizator). Nws yog tsim tshuaj raws li ib tug by-product ntawm lub synthesis ntawm acetic acid. Cov khoom siv ntuj tsim ntawm formic acid yog nettle, Pine koob, txiv hmab txiv ntoo, thiab cov zais ntawm muv thiab ntsaum.
Cov khoom muaj txiaj ntsig ntawm Formic Acid
Cov cuab yeej tseem ceeb ntawm formic acid yog qeeb cov txheej txheem ntawm kev lwj thiab rotting, ntsig txog, ua rau lub neej txee thiab siv cov khoom. Nws tau sau tseg tias formic acid txhawb cov metabolism hauv cov hlwb, yog ib qho irritant rau paj hlwb.
Xwm txheej E236
Cov khoom noj ntxiv E236 Formic acid tuaj yeem ua rau muaj qhov tshwm sim ntawm kev tsis haum tshuaj thiab ua rau mob plab hnyuv loj thaum noj ntau dhau. Yog hais tias formic acid nyob rau hauv nws daim ntawv ntshiab tau txais ntawm daim tawv nqaij los yog mucous daim nyias nyias, raws li ib tug txoj cai, ib tug hlawv tshwm sim, uas yuav tsum tau kho kom sai li sai tau nrog ib tug daws ntawm dej qab zib thiab tam sim ntawd hu rau lub tsev kho mob rau kev pab tsim nyog.
Kev sib cuag nrog cov concentrated formic acid vapors tuaj yeem ua rau lub qhov muag thiab ua pa puas. Kev noj haus tsis zoo ntawm cov tshuaj dilute txawm ua rau muaj qhov tshwm sim ntawm qhov mob hnyav necrotic gastroenteritis.
Qhov txaus ntshai ntawm formic acid nyob ntawm qhov concentration. Raws li kev faib tawm ntawm European Union, qhov concentration txog li 10% muaj qhov ua rau khaus, ntau dua 10% - corrosive.
Daim Ntawv Thov ntawm E236
Khoom noj khoom haus additive E236 feem ntau yog siv los ua tshuaj tua kab mob thiab khaws cia hauv kev tsim cov tsiaj txhu noj. Hauv kev lag luam khoom noj khoom haus, cov khoom ntawm E236 yog siv rau hauv cov khoom qab zib, tsis muaj cawv thiab dej cawv, cov ntses kaus poom thiab nqaij. Formic acid kuj tseem siv rau hauv kev lag luam tshuaj, tshuaj thiab tshuaj, hauv kev tsim cov ntaub plaub thiab tawv tanning.
Kev Siv E236
Ntawm thaj chaw ntawm peb lub teb chaws, nws raug tso cai siv cov khoom noj khoom haus E236 ua cov khoom noj tsis zoo, ua raws li cov qauv tsim los ntawm Cov Cai Tswj Xyuas Kev Noj Qab Haus Huv ntawm peb lub tebchaws.