1.Chemical qauv:
Formic acid (HCOOH): Nws yog ib qho yooj yim carboxylic acid nrog cov tshuaj formula HCOOH. Nws muaj cov pab pawg carboxyl (COOH), qhov twg hydrogen txuas nrog cov pa roj carbon monoxide thiab lwm cov pa oxygen ua ob daim ntawv cog lus nrog carbon.
Sodium formate (HCCONa): Nws yog sodium ntsev ntawm formic acid. Cov carboxylic hydrogens hauv formic acid yog hloov los ntawm sodium ions, tsim sodium formate.
2. Lub cev muaj zog:
Formic acid:
Nyob rau hauv chav tsev kub, formic acid yog cov kua xim tsis muaj xim nrog cov ntxhiab tsw.
Nws qhov kub kub yog 100.8 degrees Celsius.
Formic acid yog miscible nrog dej thiab ntau cov kuab tshuaj organic.
Sodium qauv:
Sodium formate feem ntau tuaj nyob rau hauv daim ntawv ntawm cov hmoov dawb hygroscopic.
Nws yog soluble hauv dej tab sis muaj tsawg solubility hauv qee cov organic solvents.
Vim nws qhov xwm txheej ionic, qhov sib xyaw no muaj cov ntsiab lus melting ntau dua piv rau formic acid.
3. Acid los yog alkaline:
Formic acid:
Formic acid yog cov kua qaub tsis muaj zog uas tuaj yeem pub cov protons (H +) hauv tshuaj lom neeg.
Sodium qauv:
Sodium formate yog ntsev tau los ntawm formic acid; nws tsis yog acidic. Hauv cov kua dej aqueous, nws decomposes rau hauv sodium ions (Na +) thiab formate ions (HCOO-).
4. Lub hom phiaj:
Formic acid:
Nws yog feem ntau siv rau hauv kev tsim cov tawv nqaij, textiles thiab dyes.
Formic acid yog ib qho tseem ceeb hauv kev ua cov tsiaj nkaum thiab tawv nqaij hauv kev lag luam tawv.
Nws yog siv los ua tus neeg sawv cev txo qis thiab khaws cia hauv qee qhov kev lag luam.
Hauv kev ua liaj ua teb, nws yog siv los ua ib qho khoom noj ntxiv rau inhibit qhov kev loj hlob ntawm qee yam kab mob thiab fungi.
Sodium qauv:
Sodium formate yog siv los ua tus neeg sawv cev de-icing rau txoj kev thiab txoj kev khiav.
Siv los ua tus neeg saib xyuas txo qis hauv kev lag luam luam ntawv thiab dyeing.
Qhov sib xyaw no yog siv rau hauv cov av nkos formulations hauv kev lag luam roj thiab roj.
Sodium formate yog siv los ua tus neeg sawv cev buffering hauv qee cov txheej txheem kev lag luam.
5. Ntau lawm:
Formic acid:
Formic acid yog tsim los ntawm catalytic hydrogenation ntawm carbon dioxide los yog cov tshuaj tiv thaiv ntawm methanol nrog carbon monoxide.
Cov txheej txheem kev lag luam suav nrog kev siv cov catalysts thiab kub siab thiab siab.
Sodium qauv:
Sodium formate feem ntau yog tsim los ntawm neutralizing formic acid nrog sodium hydroxide.
Cov txiaj ntsig sodium formate tuaj yeem raug cais los ntawm crystallization lossis tau txais hauv daim ntawv daws teeb meem.
6. Kev ceev faj txog kev nyab xeeb:
Formic acid:
Formic acid yog corrosive thiab tuaj yeem ua rau kub hnyiab ntawm daim tawv nqaij.
Kev nqus pa ntawm nws cov vapors tuaj yeem ua rau khaus khaus ntawm lub ntsws.
Sodium qauv:
Txawm hais tias sodium formate feem ntau suav hais tias tsis tshua muaj kev phom sij tshaj li formic acid, kev tuav thiab kev ceev faj tseem yuav tsum tau ua.
Cov txheej txheem kev nyab xeeb yuav tsum tau ua raws li thaum siv sodium formate kom tsis txhob muaj kev pheej hmoo rau kev noj qab haus huv.
7. Kev cuam tshuam ib puag ncig:
Formic acid:
Formic acid tuaj yeem biodegrade nyob rau hauv qee yam mob.
Nws qhov cuam tshuam rau ib puag ncig yog cuam tshuam los ntawm yam xws li concentration thiab lub sijhawm raug.
Sodium qauv:
Sodium formate feem ntau suav tias yog ib puag ncig tus phooj ywg thiab muaj kev cuam tshuam qis dua li lwm cov de-icers.
8. Nqi thiab Muaj:
Formic acid:
Tus nqi ntawm formic acid tuaj yeem sib txawv nyob ntawm txoj kev tsim khoom thiab purity.
Nws tuaj yeem yuav los ntawm ntau tus neeg muag khoom.
Sodium qauv:
Sodium formate yog tus nqi sib tw thiab nws cov khoom muaj cuam tshuam los ntawm kev thov los ntawm kev lag luam sib txawv.
Nws yog npaj los ntawm neutralizing formic acid thiab sodium hydroxide.
Formic acid thiab sodium formate yog cov sib txuas sib txawv nrog cov khoom sib txawv thiab kev siv. Formic acid yog cov kua qaub tsis muaj zog siv rau ntau yam kev siv, los ntawm cov txheej txheem kev lag luam mus rau kev ua liaj ua teb, thaum sodium formate, sodium ntsev ntawm formic acid, yog siv rau hauv thaj chaw xws li de-icing, textiles thiab roj thiab roj kev lag luam. Nkag siab txog lawv cov khoom yog qhov tseem ceeb rau kev nyab xeeb thiab kev siv tau zoo hauv ntau qhov chaw.
Post lub sij hawm: Dec-06-2023