Video: Furan siv rau dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Furan yog siv hauv tsim ntawm lacquersand ua ib qho hnyav rau resins. Nws kuj yog siv hauv kev tsim cov tshuaj ua liaj ua teb (secticides), stabilizers, thiab tshuaj.
Ib yam li ntawd, nws raug nug, furan nyob qhov twg?
Furan yog pom nyob rau hauv tshav kub-kho khoom noj khoom haus thiab yog tsim los ntawm thermal degradation ntawm natural foodconstituents. Nws tuaj yeem yog pom nyob rau hauv roasted kas fes, instant kas fes, thiab cov khoom noj me nyuam ua tiav.
Ib sab saum toj no, puas yog furan electron nplua nuj? Nyob rau hauv txhua rooj plaub, ib leeg khub ntawm electrons qhia inred ntawm lub heteroatom yog ib feem ntawm lub pi system asindicated nyob rau hauv lub orbital drawings ntawm furan , pyrrole, andimidazole. Txij li qhov no siab dua li 0.167 electrons / proton hauv benzene, furan raug txiav txim siab electron nplua nuj.
Tsis tas li ntawd, pyrrole siv rau dab tsi?
Pyrrol thiab nws cov derivatives yog dav siv intermediates hauv synthesis ntawm pharmaceuticals, agrochemicals, dyes, photographic chemicals, perfumes thiab lwm yam organic tebchaw.
Tus qauv ntawm furan yog dab tsi?
C4H4O
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