Sulfur Tetrafluoride (SF4)

Ƙayyadaddun bayanai

Sulfur tetrafluoride wani fili ne na inorganic tare da tsarin kwayoyin halitta na SF4. Gas mara launi ne, mai lalacewa kuma mai guba sosai a cikin daidaitaccen yanayi. Yana da nauyin kwayoyin halitta na 108.05, wurin narkewa na -124°C, da wurin tafasa na -38°C. Shi ne mafi inganci da amfani da ko'ina a zabi kwayoyin fluorinating wakili. Yana iya zaɓar ƙungiyoyin carbonyl da hydroxyl. Yana da matsayin da ba za a iya maye gurbinsa ba a cikin samar da sinadarai masu kyau, kayan kristal na ruwa da manyan masana'antun magunguna. Sulfur tetrafluoride wani zaɓi ne na kwayoyin fluorinating wakili. Gas ne mara launi tare da ƙaƙƙarfan ƙamshi mai kama da iskar sulfur dioxide ƙarƙashin yanayin zafi da matsa lamba na al'ada. Yana da guba kuma baya ƙonewa ko fashewa a cikin iska; a 600°C Har yanzu yana da kwanciyar hankali. Ƙarfin hydrolysis a cikin iska yana fitar da fararen hayaki. Ci karo da danshi a cikin yanayi na iya haifar da lalata kamar hydrofluoric acid. Cikakken hydrolyzed a cikin sulfur dioxide da hydrofluoric acid, lokacin da wani ɓangare na hydrolyzed, yana haifar da thionyl fluoride mai guba, amma yana iya zama gaba ɗaya ta hanyar maganin alkali mai ƙarfi ya zama gishiri mara guba kuma mara lahani; ana iya narkar da shi a cikin benzene. Sulfur tetrafluoride a halin yanzu shine mafi kyawun zaɓin wakili na fluorinating na halitta wanda ake amfani dashi sosai. Yana iya zaɓin fluorinate carbonyl da ƙungiyoyin hydroxyl (masanyar oxygen a cikin mahaɗan da ke ɗauke da carbonyl); ana amfani da shi sosai a cikin sinadarai masu kyau don kayan kristal mai tsayi mai tsayi da kuma samar da matsakaicin matsakaicin masana'antar magunguna da magungunan kashe qwari yana da matsayin da ba za a iya maye gurbinsa ba. Hakanan za'a iya amfani da shi don iskar gas, iskar gas ɗin sinadari, wakili na jiyya, busasshen jini na plasma da sauran fannoni da yawa. An yi amfani da shi a cikin ƙwayoyin halitta, reagent na kowa don yin fluorocarbons. Sulfur tetrafluoride Ana adana shi a cikin ɗakin ajiya mai sanyi, mai iska. Ya kamata a adana shi daban daga oxidants, sinadarai masu cin abinci, da karafa na alkali, kuma daga wuta da tushen zafi.

Aikace-aikace:

① Organic fluorination wakili:
Mafi inganci high selectivity fluorinating wakili ne yadu amfani a high-sa ruwa crystal abu da fluorine-dauke da magungunan kashe qwari, Pharmaceuticals da kuma tsaka-tsaki; Hakanan za'a iya amfani dashi azaman iskar gas, iskar sinadarai, abubuwan jiyya na sama, bushewar etching, plasma da sauran fannoni.

Kunshin al'ada:

Amfani:

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