Methanesulfonic acid/CAS: 75-75-2
Kev Piav Qhia Luv:
Lub Npe Khoom: Methanesulfonic acid
CAS: 75-75-2
MF:CH4O3S
MW:96.11
QAUV:
cov lus qhia tshwj xeeb
| Khoom | Cov Lus Qhia Tshwj Xeeb |
| Qhov Kub Yaj | 17-19 °C (lit.) |
| Kub Kub | 167 °C/10 mmHg (lit.) |
| Qhov Ceev | 1.475-1.485 g/mL ntawm 20 °C 1.481 g/mL ntawm 25 °C (lit.) |
| Qhov Ceev ntawm Cov Pa | 3.3 (piv rau huab cua) |
| Siab ntawm cov pa dej | 1 hli Hg ( 20 °C) |
| Refractive Index | n20/D 1.429(lit.) |
| Lub Teeb Ci | > 230 ℉ |
| Kev Khaws Cia | 2-8 ℃ |
| Kev yaj tau | Dej: 1,000 g/L yaj tau ntawm 20°C |
| Cov coefficient ntawm acidity (pKa) | -2.6 (ntawm 25 ℃) |
Kev Siv
Methanesulfonic acid yog cov alkyl sulfonic acid yooj yim tshaj plaws. Kua tsis muaj xim. Yooj yim yaj rau hauv dej, me ntsis yaj hauv cov organic solvents. Muaj zog acidity nrog pKa ntawm -0.6. Tsis hydrolyzed hauv dej kub lossis cov kua alkaline kub. Methanesulfonic acid tuaj yeem tsim los ntawm kev oxidation ntawm methyl mercaptan lossis dimethyl disulfide nrog oxygen lossis nitric acid. Nws kuj tseem tuaj yeem npaj los ntawm kev daws teeb meem ntawm sodium sulfite thiab dimethyl sulfate hauv dej ntawm 100 ° C.
Kev Siv:
Methanesulfonic acid yog ib yam tshuaj caustic, luv ua MSA, uas muaj kev cia siab dav hauv kev siv electroplating thiab tau ua pov thawj tias yog ib qho hloov zoo rau fluoroboric acid lossis phenolic sulfonic acid. Nws yog ib yam khoom siv raw rau tshuaj thiab tshuaj tua kab, thiab kuj siv tau ua tus neeg sawv cev dehydrating, tus neeg txhawb nqa kev kho txheej, tus neeg sawv cev kho fiber, cov kuab tshuaj, thiab catalyst rau kev ntxuav, esterification, thiab polymerization reactions.
Ntim thiab Xa Khoom
250KG / Nruas los yog raws li cov neeg siv khoom xav tau.
Yuav xa tau los ntawm dej hiav txwv thiab cua
Kev Khaws Cia
Methanesulfonic acid yog ib yam tshuaj lom neeg uas yuav tsum tau muaj kev nyab xeeb thaum lub sijhawm ua haujlwm, xws li hnav hnab looj tes tiv thaiv tshuaj, tsom iav kev nyab xeeb, thiab khaub ncaws tiv thaiv.
Thaum siv los yog khaws cia, khaws cia kom deb ntawm cov qhov chaw uas muaj hluav taws thiab kub heev, thiab tsis txhob kov cov tshuaj oxidants.
Thaum siv, xyuas kom meej tias muaj qhov chaw ua haujlwm hauv chav kuaj uas muaj cua nkag tau zoo thiab tsis txhob nqus cov pa dej uas nws nqus tau.
