Puas yog Propionic Acid Solvent?
Yog lawm. Propionic acid (C3H6O2, CAS 79-09-4) yog cov organic acid ntau yam uas ua haujlwm ua kuab tshuaj hauv ntau hom kev lag luam. Nws yog cov kua uas tsis muaj xim nrog lub ntse, me ntsis rancid tsw, thiab nws sib tov tag nrho nrog dej thiab feem ntau cov organic solvents, xws li ethanol, ether, chloroform thiab acetone. Qhov kev sib xyaw ua ke ntawm cov dej tsis zoo tag nrho thiab cov organic solvency zoo los ntawm nws cov saw hlau luv luv nqa ob pawg hydrophobic alkyl thiab hydrophilic carboxyl pawg. Yog li ntawd, propionic acid tuaj yeem yaj ob qho tib si polar thiab non-polar tshuaj thiab ua raws li tus neeg sawv cev sib txuas hauv cov txheej txheem nyuaj, pab cov theem tsis sib xws nyob rau hauv kev sib xyaw ua ke hauv kev lag luam.
Propionic Acid Specifications (CAS 79-09-4)
| Parameter | Tus nqi |
|---|---|
| CAS nr | 79-09-4 |
| Cov mis mos molecular | C3H6O2 |
| Molecular hnyav | 74,08 g / mol |
| Boiling point | 141 degree |
| Melting point | -21 degree |
| Flash point (lub khob kaw) | Txog 52 - 54 degree |
| Nws pib - qhov kub thiab txias | Txog 485 degree |
| Qhov ceev ntawm 20 degree | 0.993 g / cm³ |
| Vapor ntom ntom (cua=1) | 2.55 |
| Solubility | Ua tiav miscible nrog dej, ethanol, ether thiab acetone |
| UN tus lej / chav kawm | UN 1848, Class 8, Packing Group III |
| EINECS tus lej | 201-176-3 |
Key Solvent Properties
Ua tiav miscibility:sib tov nyob rau hauv tag nrho cov proportions nrog dej thiab nrog cov organic solvents, uas yog tsis tshua muaj ntawm carboxylic acids ntawm no loj.
Hydrophilic / hydrophobic tshuav nyiaj li cas:cov qauv dissolves polar hom xws li ntsev thiab dej -soluble polymers thiab tsis yog-polar roj thiab resins.
Coupling cwj pwm:pab homogenize roj- dej tshuab hauv cov tshuaj ntxuav, coatings thiab agrochemical tank sib tov, txo cov kev xav tau cais cov co- cov khoom hnyav.
Tsawg evaporation hauv ambient tej yam kev mob:nws 141℃boiling point txhais tau hais tias nws tseem nyob rau hauv formulations ntev tshaj li qis esters thiab ketones, uas suits qeeb - kho tshuab.
Muaj kev siv ntawm Propionic Acid
Solvent thiab processing pab.Propionic acid yog siv rau hauv cov kuab tshuaj-raws li txheej txheej, kev lag luam thiab tsev ntxhua khaub ncaws, kev tsim tshuaj lom neeg ua liaj ua teb, thiab hauv kev tshem tawm thiab ntxuav cov kauj ruam uas nws cov dej miscibility tso cai yooj yim tshem tawm los ntawm kev ntxuav.
Preservative (E280).Tshaj li kev daws teeb meem, propionic acid yog ib qho zoo -tsim tshuaj tiv thaiv kab mob. Nws yog ntxiv rau cov qhob cij thiab cov khoom ci, tsiaj pub, nplej thiab silage los tiv thaiv kev loj hlob ntawm pwm thiab kab mob. Qhov no ob lub luag hauj lwm raws li hnyav thiab preservative ua rau nws muaj nuj nqis nyob rau hauv cov zaub mov, pub thiab chaw muab tshuaj chains.
Tshuaj nruab nrab.Nws yog cov khoom siv pib rau propionate esters siv los ua cov kuab tshuaj thiab tsw, rau tshuaj tua kab mob thiab lwm yam tshuaj agrochemicals, rau cellulose acetate propionate plastics, thiab rau cov tshuaj intermediates.
Kev nyab xeeb thiab tuav
Propionic acid yog corrosive thiab tuaj yeem ua rau tawv nqaij kub hnyiab thiab qhov muag puas (GHS H314, H318). Nws yog thauj raws li UN 1848, Chav Kawm 8 corrosive kua, Packing Group III. Siv looj tsom iav dub, kua qaub- cov hnab looj tes tiv thaiv thiab tiv thaiv khaub ncaws, thiab ua haujlwm nrog qhov cua txaus. Nws vapor hnyav dua li huab cua thiab ua rau lub qhov muag thiab ua pa. Nyob rau hauv rooj plaub ntawm daim tawv nqaij los yog qhov muag, yaug kom huv si nrog dej tsawg kawg yog 15 feeb thiab nrhiav kev kho mob. Khaws rau hauv cov thawv kaw nruj nreem ua los ntawm cov khoom siv sib xws, kom deb ntawm cov hauv paus muaj zog thiab oxidizers.
Cov lus nug nquag
Puas yog propionic acid yog cov kuab tshuaj zoo?Yog lawm, rau cov haujlwm tshwj xeeb: nws yog tag nrho miscible nrog dej thiab cov kuab tshuaj organic, dissolves ob lub ncov qaumteb qabteb thiab tsis yog -cov ntaub ntawv polar, thiab ua haujlwm zoo li tus neeg sawv cev sib txuas hauv kev tu, txheej thiab tshuaj agrochemical formulations.
Propionic acid siv rau dab tsi?Nws yog siv los ua cov kuab tshuaj thiab kev pab cuam, raws li kev khaws cia (E280) hauv cov khoom noj, pub thiab nplej, thiab ua ib qho nruab nrab rau esters, tshuaj tua kab mob, yas thiab tshuaj.
Puas yog propionic acid tib yam li acetic acid?Tsis yog. Ob leeg yog luv -chain carboxylic acids, tab sis propionic acid muaj peb carbons (C3H6O2) piv rau acetic acid ob (C2H4O2), muab nws txawv solvency, tsw thiab antimicrobial zog.
Puas yog propionic acid txaus ntshai los daws?Nws yog corrosive (H314) thiab yuav tsum tau hnab looj tes, tsom iav thiab qhov cua. Nws tsis raug cais raws li cov nplaim taws heev, nrog rau qhov kaw - khob qhov taw qhia ze ntawm 52-54℃, tab sis nws kub hnyiab tau yog rhuab.
Propionic acid puas tuaj yeem siv los ua zaub mov noj?Propionic acid thiab nws cov ntsev (E280-E283) yog cov khoom noj khoom haus uas tau tso cai nyob hauv ntau lub tebchaws rau cov khoom noj bakery thiab lwm yam khoom noj, nyob rau hauv kev txwv ntau npaum li cas.
Yuav ua li cas propionic acid xa tuaj rau hauv ntau?Nws xa tawm raws li UN 1848 Chav Kawm 8 hauv nruas, IBCs lossis ISO tso tsheb hlau luam, nrog SDS thiab COA. Paub meej tias cov khoom siv sib xws ntawm cov tso tsheb hlau luam thiab cov hoses nrog cov kua qaub ua ntej thauj khoom.