Trifluoromethanesulfonic acid (TFMS, TFSA, HOTf lossis TfOH) muaj ntau yam kev siv, feem ntau yog vim nws muaj zog acidity, thermal stability thiab chemical stability. Cov hauv qab no yog cov kev siv tseem ceeb ntawm trifluoromethanesulfonic acid:
1. Hloov cov kua qaub inorganic ib txwm muaj:
Feem ntau, trifluoromethanesulfonic acid tuaj yeem hloov cov inorganic acids ib txwm muaj xws li sulfuric acid thiab hydrochloric acid los ua kom zoo dua thiab txhim kho cov txheej txheem. Nws cov acidity muaj zog thiab kev ruaj khov ua rau nws ua tau zoo hauv ntau yam kev tshuaj lom neeg.
2. Catalyst:
Trifluoromethanesulfonic acid yog siv los ua ib qho catalyst hauv kev kawm txog cov tshuaj esterification. Nws cov acidity muaj zog tuaj yeem ua kom nrawm dua qhov kev ua tshuaj thiab ua rau cov txiaj ntsig ntau dua.
Hauv cov teb ntawm cov tshuaj thiab cov organic synthetic chemistry, trifluoromethanesulfonic acid tuaj yeem txhawb ntau yam kev tshuaj lom neeg nyuaj ua ib qho catalyst.
3. Kev lag luam tshuaj:
Trifluoromethanesulfonic acid yog siv dav hauv kev lag luam tshuaj los tsim cov khoom siv raw khoom nruab nrab xws li nucleosides, tshuaj tua kab mob, steroids, glycosides thiab vitamins.
Nws kuj tseem siv tau ua tus catalyst los koom nrog hauv cov txheej txheem tshuaj synthesis los txhim kho kev ua haujlwm zoo thiab kev ntshiab ntawm cov tshuaj.
4. Tshuaj lom neeg thiab lwm yam teb:
Hauv kev lag luam tshuaj lom neeg, trifluoromethanesulfonic acid thiab nws cov khoom lag luam xws li trifluoromethanesulfonic anhydride thiab trimethylsilyl trifluoromethanesulfonate yog cov phooj ywg ib puag ncig thiab muaj cov teebmeem catalytic muaj zog. Lawv siv dav hauv kev lag luam xws li silicone, petrochemicals, roj hmab, tsw qab thiab tshuaj tsw qab, thiab tshuaj tua kab.
Tsis tas li ntawd, trifluoromethanesulfonic acid kuj tseem siv rau hauv kev tsim thiab kev tshawb fawb ntawm cov khoom siv zog tshiab, xws li cov roj hydrofluoric acid.
Hauv kev xaus lus, trifluoromethanesulfonic acid muaj ntau yam kev siv hauv ntau qhov chaw vim nws cov khoom siv tshuaj lom neeg tshwj xeeb thiab paub tias yog "cov cuab yeej hluavtaws thoob ntiaj teb".
Cov hauv qab no yog ib qho kev piav qhia txog nws cov cheeb tsam tseem ceeb ntawm daim ntawv thov:
Kev lag luam tshuaj:
Trifluoromethanesulfonic acid yog siv dav hauv kev tsim cov tshuaj raw khoom nruab nrab xws li nucleosides, tshuaj tua kab mob, steroids, glycosides thiab vitamins.
Nws kuj tseem siv tau ua tus catalyst los koom nrog hauv cov txheej txheem tshuaj synthesis los txhim kho kev ua haujlwm zoo thiab kev ntshiab ntawm cov tshuaj.
Tshuaj lom neeg teb:
Trifluoromethanesulfonic acid thiab nws cov khoom muaj feem xyuam, xws li trifluoromethanesulfonic anhydride thiab trimethylsilyl trifluoromethanesulfonate, yog cov phooj ywg ib puag ncig thiab muaj cov teebmeem catalytic muaj zog.
Trifluoromethanesulfonic acid kuj tseem ua lub luag haujlwm tseem ceeb hauv kev lag luam xws li silicone, petrochemicals, roj hmab, tsw qab thiab tshuaj tsw qab, thiab tshuaj tua kab.
Kev kawm txog chemistry hauv hluav taws xob:
Trifluoromethanesulfonic anhydride (ua los ntawm trifluoromethanesulfonic acid ua cov khoom siv tseem ceeb) siv tau los tsim cov polymers uas ua hluav taws xob.
Lwm cov teb:
Hauv thaj teb ntawm cov tshuaj tua kab, trifluoromethanesulfonic anhydride tuaj yeem siv los ua cov tshuaj tua kab.
Hauv thaj teb ntawm cov yas, trifluoromethanesulfonic anhydride tuaj yeem siv rau kev hloov kho yas.
Vim nws muaj zog acidity thiab ruaj khov, trifluoromethanesulfonic acid tuaj yeem hloov cov inorganic acids ib txwm muaj xws li sulfuric acid thiab hydrochloric acid hauv ntau zaus, ua lub luag haujlwm hauv kev ua kom zoo dua thiab txhim kho cov txheej txheem.
Hauv kev xaus, trifluoromethanesulfonic acid ua lub luag haujlwm tseem ceeb hauv ntau yam lag luam vim nws cov khoom siv tshuaj lom neeg tshwj xeeb thiab ntau yam kev siv.
Cov Khoom Siv Tshuaj ntawm Trifluoromethanesulfonic acid
Qhov kub yaj -40 °C
Kub taw tes 162 ° C (lit.)
Qhov ceev 1.696 g/mL ntawm 25 °C (lit.)
qhov ceev ntawm cov pa dej 5.2 (piv rau huab cua)
siab ntawm cov pa dej 8 hli Hg (25 °C)
Qhov ntsuas refractive n20 / D 1.327 (lit.)
RTECS PB2771000
Tsis muaj ib tug neeg ua haujlwm
Khaws cia rau qhov kub thiab txias. Khaws cia rau hauv qab +30°C.
kev yaj tau sib xyaw hauv H2O
pka -14 (ntawm 25 ℃)
ua kua Fuming
Lub zog nqus tshwj xeeb 1.696
xim av me ntsis
PH <1 (H2O)
Kev yaj dej tau
Rhiab Hygroscopic
Merck 14,9676
BRN 1812100
Kev Ruaj Ntseg: Ruaj khov. Tsis sib haum nrog cov kua qaub, alkalis, hlau.
InChIKey ITMCEJHCCFYSIIV-UHFFFAOYSA-N
LogP 0.3 ntawm 25 ℃
Cov Ntaub Ntawv Tiv Tauj
Lub sijhawm tshaj tawm: Lub Peb Hlis-31-2025






