I-butyric anhydride/CAS：106-31-0
Incazelo emfushane:
Igama lomkhiqizo: i-butyric anhydride
I-CAS: 106-31-0
I-MF: C8H14O3
I-MW: 158.2
ISAKHIWO:
Ubuningi: 0.967 g/mL ku-25 °C (ngokukhanya)
incazelo
| Into | Sama-tndard |
| Ukubukeka | Uketshezi olungabonakali olungenambala |
| Okuqukethwe kwe-butyric anhydride, wt% | 99.0
|
| I-asidi ye-butyric,%
| 1.0
|
| i-anhydride exubile,%
| 0.5
|
Ukusetshenziswa
I-anhydride ye-butyric isetshenziswa kakhulu njenge-acylating reagent ekwakhiweni kwezinto eziphilayo. Ingasabela ngama-alcohols, ama-phenol, ama-amine, njll. ukuze yakhe ama-esters ahambisanayo, ama-phenyl ether, ama-amides namanye ama-compounds. I-anhydride ye-butyric ingasetshenziswa futhi njengezinto zokusetshenziswa zokumboza, amadayi kanye namapulasitiki. I-anhydride ye-butyric ingalungiswa ngokuphendula i-butyric acid nge-acetic anhydride. Izimo zokusabela zivame ukwenziwa ngaphansi kwezimo ze-acidic kanye nasezingeni lokushisa eliphansi. I-anhydride ye-butyric iyacasula futhi iyalimaza futhi ingabangela ukucasuka emehlweni, esikhumbeni, endleleni yokuphefumula kanye nasesimisweni sokugaya ukudla. Ngesikhathi sokuhlinzwa, kufanele kuthathwe ukunakekelwa ukuze kugwenywe ukuthintana nesikhumba namehlo, futhi kuqinisekiswe ukuthi ukuhlinzwa kwenziwa ngaphansi kwezimo zomoya omuhle.
Luwuketshezi olungenambala futhi olubonakalayo olunephunga elibi. Ubuningi obuhlobene bungu-0.9668 (20/20℃), iphuzu lokuncibilika lingu-75℃, kanti iphuzu lokubila lingu-198℃. Luyancibilika ezinyibilikisini eziphilayo ezifana ne-ether. Luyabola lube yi-butyric acid uma luhlangana namanzi. Lusabela nama-alcohol ukuze lwakhe ama-esters. Luwuketshezi olungenambala, olubonakalayo noluvuthayo. Luyancibilika emanzini futhi lubola ukuze lwakhe i-butyric acid, futhi luncibilika ku-ether.
Ukupakisha Nokuthumela
195 kg/isigubhu noma ngokwezidingo zamakhasimende.
Kungokwempahla evamile futhi kungathunyelwa ngolwandle nangomoya
Gcina futhi ugcine
Isikhathi sokuphila: Izinyanga ezingama-24 kusukela ngosuku lokwenziwa kwento epakishweni lokuqala elingavulwanga, igcinwe endaweni epholile neyomile kude nokukhanya kwelanga okuqondile, amanzi.
Indawo yokugcina izinto enomoya, Ukomisa okuphansi kwezinga lokushisa, Ihlukaniswe nama-oxidants, ama-acid.
