Video: Puas yog TFA flammable?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Trifluoroacetic acid nws tus kheej tsis hlawv. * POISONOUS GASES tau tsim tawm hauv hluav taws, suav nrog Hydrogen Fluoride. * Cov khoom ntim tuaj yeem tawg hauv hluav taws. * Siv cov tshuaj tsuag dej kom cov ntim hluav taws kub hnyiab.
Raws li, TFA puas yog cov kua qaub muaj zog?
TFA yog qhov yooj yim ruaj khov perfluorinated carboxylic kua qaub chemical compound, nrog rau cov mis CF3CO2H. Nws yog ib muaj zog carboxylic kua qaub vim muaj kev cuam tshuam ntawm pawg electronegative trifluoromethyl. TFA yog yuav luag 100,000-fold ntxiv acidic tshaj li acetic kua qaub . Nws yog conjugate kua qaub ntawm trifluoroacetate.
Tom qab ntawd, lo lus nug yog, yog TFA volatile? TFA raws li nws cov protonated CF3COOH daim ntawv yog heev tsis hloov pauv . Koj yuav tsum nrhiav kom muaj zog acid kom hloov TFA rau nws hom protonated. Nws cov tshuaj tiv thaiv kev sib tw - cov kua qaub muaj zog tshem tawm cov kua qaub tsis muaj zog los ntawm nws cov ntsev. Thaum twg TFA yog protonated, yog evaporates yooj yim heev los ntawm koj tus qauv.
Yog li ntawd, TFA puas muaj tshuaj lom?
Kev nyab xeeb. Trifluoroacetic acid yog ib qho corrosive acid tab sis nws tsis ua rau muaj kev phom sij cuam tshuam nrog hydrofluoric acid vim tias carbon-fluorine daim ntawv cog lus tsis yog labile. TFA yog teeb meem thaum nqus tau, ua rau tawv nqaij kub hnyiab thiab yog tshuaj lom rau cov kab mob hauv dej txawm tias tsis tshua muaj siab.
Koj neutralize TFA li cas?
Ua tib zoo neutralize me me nchuav ntawm TFA nrog rau tus neeg sawv cev tsim nyog xws li sodium carbonate, dilute nrog cov khoom nqus dej, tso rau hauv lub thawv tsim nyog, thiab pov tseg kom raug. Kev tiv thaiv ua pa yuav tsim nyog yog tias muaj qhov nchuav loj lossis tso rau hauv qhov chaw kaw.
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