Propionic acid CAS 79-09-4, kuj hu uapropanic acid, yog ib qho tseem ceeb ntawm cov organic carboxylic acid dav siv nyob rau hauv cov tsiaj pub, kev txuag zaub mov, thiab kev tsim tshuaj.
Basic Chemical Information
- Lub npe tshuaj:Propionic acid / Propanoic acid
- Tshuaj formula: C₃H₆O₂
- Molecular Luj:74,08 g / mol
- CAS nr: 79-09-4
- Chav kawm tshuaj:Luv -chain fatty acid, carboxylic acid
1. Acidity
Propionic acid yog cov organic acid tsis muaj zog nrog cov carboxyl (-COOH) pab pawg ua haujlwm.
pKa ≈ 4.87
Muaj peev xwm txo qis pH zoo
Lub luag haujlwm rau muaj zog antimicrobial thiab antifungal kev ua haujlwm
Kev lag luam ntsig txog:
Qhov no acidity ua rau propionic acid zoo heev li pub preservative thiab pwm inhibitor.
2. Reactivity
Propionic acid qhia txog cov tshuaj tiv thaiv ntawm carboxylic acids:
Reacts nrog bases los tsim propionate ntsev
Reacts nrog cawv los tsim propionate esters
Muaj peev xwm tsim cov kua qaub chlorides thiab anhydrides
Commercial derivatives muaj xws li:
Calcium propionate
Sodium propionate hmoov
Cov tshuaj propionyl chloride
3. Solubility
Ua kom miscible nrog dej
Soluble hauv cawv thiab ethers
Tswv yim kom zoo dua:
Kev solubility siab ua kom muaj kev sib faib sib faib hauv pub, silage, thiab kua formulations.
Vim li cas thiaj xaiv gneebio?
Cov neeg muas zaub los ua ntej. Peb muab siab - cov khoom zoo ntawm tus nqi tsim nyog thiab xyuas kom cov khoom xa tuaj sai.
Peb tuaj yeem xa cov khoom ncaj qha mus rau koj qhov chaw nyob xa khoom, uas muaj kev nyab xeeb thiab ceev ceev. Peb muaj cov khoom npaj rau hauv Tshuag.
Peb teb sai thiab meej rau cov neeg siv khoom cov lus nug. Peb muab kev sov siab tom qab - kev muag khoom thiab yuav pab koj daws txhua yam teeb meem uas koj ntsib.
Peb xa tshwj xeeb zoo thiab kev pabcuam ntawm tus nqi sib tw.
Nyem qhov no xa ib qho kev nug
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Peb lub tuam txhab
Gneebioyog cov kws tshaj lij cov khoom siv raw khoom nyob hauv Henan Xeev, Suav. Peb tau dhau daim ntawv pov thawj kev ua haujlwm zoo thiab muaj tus kheej - tswj cov cai ntshuam thiab xa tawm. Peb cov khoom yog nrov nrog cov neeg siv khoom. Raws li tus neeg xa khoom thoob ntiaj teb, peb xa cov ntaub ntawv pov thawj tshuaj raw khoom uas ua raws li REACH, RoHS, ISO thiab lwm yam qauv thoob ntiaj teb. Peb lub peev xwm ntau lawm txhua hli ua kom zoo ib yam thiab muaj kev ntseeg siab rau kev txiav txim ntau.
