I-Sulfur Tetrafluoride (SF4)

Inkcazo

I-Sulfur tetrafluoride yi-inorganic compound ene-molecular formula ye-SF4. Yigesi engenambala, erhabaxa kwaye inetyhefu kakhulu kwindawo eqhelekileyo. Inobunzima be-molecular be-108.05, indawo yokunyibilika ye--124°C, kunye nendawo yokubila ye--38°C. Yeyona arhente ye-organic fluorinating esebenzayo nesetyenziswa kakhulu. Inganyibilikisa amaqela e-carbonyl kunye ne-hydroxyl ngokukhetha. Inendawo engenakutshintshwa kwimveliso yeekhemikhali ezintle, izinto zekristale yolwelo kunye namashishini amayeza aphezulu. I-Sulfur tetrafluoride yi-organic fluorinating agent ekhethiweyo. Yigesi engenambala enevumba elinamandla elifana negesi ye-sulfur dioxide phantsi kobushushu obuqhelekileyo kunye noxinzelelo. Inetyhefu kwaye ayitshisi okanye iqhume emoyeni; kwi-600°C Isezinzile kakhulu. I-hydrolysis enamandla emoyeni ikhupha umsi omhlophe. Ukudibana nokufuma kwindawo kunokubangela ukubola okufana ne-hydrofluoric acid. Ifakwe ngokupheleleyo kwi-sulfur dioxide kunye ne-hydrofluoric acid, xa ifakwe kancinci kwi-hydrolyzed, ivelisa i-thionyl fluoride enobuthi, kodwa inokufunxwa ngokupheleleyo yisisombululo esinamandla se-alkali ukuze ibe yityuwa engenabungozi nengenabungozi; inokunyibilikiswa kwi-benzene. I-sulfur tetrafluoride okwangoku yeyona arhente ye-organic fluorinating ekhethwayo esetyenziswa kakhulu. Ingafakela ngokukhethekileyo amaqela e-carbonyl kunye ne-hydroxyl (ithatha indawo ye-oksijini kwiikhompawundi eziqulethe i-carbonyl); isetyenziswa kakhulu kwiikhemikhali ezintle kwizixhobo zekristale yolwelo oluphezulu kwaye Ukuveliswa kwezinto eziphambili zoshishino zamayeza kunye nezibulala-zinambuzane kunesikhundla esingenakutshintshwa. Ingasetyenziselwa igesi ye-elektroniki, ukufakwa komphunga weekhemikhali, iarhente yonyango lomphezulu, i-plasma dry etching kunye nezinye izinto ezininzi. Isetyenziswa kwi-organic synthesis, yi-reagent eqhelekileyo yokwenza ii-fluorocarbons. I-sulfur tetrafluoride igcinwa kwindawo yokugcina izinto epholileyo, enomoya. Kufuneka igcinwe ngokwahlukileyo kwii-oxidants, iikhemikhali ezityiwayo, kunye neentsimbi ze-alkali, kwaye kude nemithombo yomlilo kunye nobushushu.

Isicelo:

① Iarhente ye-fluorination yendalo:
Eyona arhente ye-fluorinating esebenza kakhulu ekukhetheni okuphezulu isetyenziswa kakhulu kwizinto zekristale yolwelo oluphezulu kunye nezibulala-zinambuzane eziqulethe i-fluorine, amayeza kunye nezinye izinto eziphakathi; ingasetyenziswa njengegesi ye-electron, i-chemical vapor deposition, ii-arhente zonyango lomphezulu, i-dry etching, i-plasma kunye nezinye izinto.

Iphakheji eqhelekileyo:

Inzuzo:

①Iminyaka engaphezu kweshumi ikwimarike;
②Umenzi wesatifikethi se-ISO;
③Ukuhanjiswa okukhawulezayo;
④Umthombo wezinto ezikrwada ezizinzileyo;
⑤ Inkqubo yohlalutyo olukwi-intanethi yokulawula umgangatho kwinyathelo ngalinye;
⑥Imfuneko ephezulu kunye nenkqubo ecokisekileyo yokuphatha isilinda ngaphambi kokuyizalisa;