Butyric anhydride/CAS：106-31-0

Kev Siv

Butyric anhydride feem ntau yog siv los ua cov tshuaj acylating hauv cov organic synthesis. Nws tuaj yeem ua rau cov cawv, phenols, amines, thiab lwm yam los ua cov esters, phenyl ethers, amides thiab lwm yam sib xws. Butyric anhydride kuj tseem siv tau ua cov khoom siv raw rau cov txheej, cov xim thiab cov yas. Butyric anhydride tuaj yeem npaj tau los ntawm kev ua rau butyric acid nrog acetic anhydride. Cov xwm txheej ua rau feem ntau ua rau muaj kua qaub thiab ntawm qhov kub qis. Butyric anhydride ua rau khaus thiab lwj thiab ua rau khaus rau lub qhov muag, tawv nqaij, txoj hlab pa thiab lub plab zom mov. Thaum lub sijhawm ua haujlwm, yuav tsum ceev faj kom tsis txhob kov daim tawv nqaij thiab qhov muag, thiab xyuas kom meej tias kev ua haujlwm tau ua tiav hauv qab qhov cua zoo.

Nws yog ib qho kua tsis muaj xim thiab pob tshab nrog ib qho tsw tsis zoo. Qhov ceev ntawm qhov sib piv yog 0.9668 (20/20 ℃), lub ntsiab lus yaj yog -75 ℃, thiab lub ntsiab lus kub yog 198 ℃. Nws yaj tau hauv cov kuab tshuaj organic xws li ether. Nws decomposes rau hauv butyric acid thaum ntsib dej. Nws reacts nrog cawv los tsim esters. Nws yog ib qho kua tsis muaj xim, pob tshab thiab flammable. Nws yaj tau hauv dej thiab decomposes rau hauv butyric acid, thiab nws yaj tau hauv ether.

Ntim thiab Xa Khoom

195 kg/nruas los yog raws li cov neeg siv khoom xav tau.
Yog cov khoom siv dav dav thiab tuaj yeem xa los ntawm dej hiav txwv thiab huab cua

Khaws cia thiab khaws cia

Lub neej txee: 24 lub hlis txij li hnub tsim khoom hauv cov ntim khoom tsis tau qhib khaws cia rau hauv qhov chaw txias thiab qhuav kom tsis txhob raug tshav ntuj ncaj qha, dej.
Lub tsev rau khoom muaj cua nkag, ziab kom qhuav kub tsawg, Sib cais ntawm cov tshuaj oxidants, cov kua qaub.