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umkhiqizo

I-Furfuryl Acetate (CAS#623-17-6)

Isakhiwo Samakhemikhali:

I-Molecular Formula C7H8O3
I-Molar Mass 140.14
Ukuminyana 1.118g/mLat 25°C(lit.)
I-Boling Point 175-177°C(lit.)
I-Flash Point 150°F
Inombolo ye-JECFA 739
Ukuncibilika kwamanzi 0.5-1.0 g/100 mL ku-23 ºC
I-Vapor Presure 1.06mmHg ku-25°C
Ukubukeka uketshezi olucacile
Umbala engenambala
I-BRN 116128
Isimo Sesitoreji 2-8°C
I-Refractive Index n20/D 1.462(lit.)
Izakhiwo Zomzimba Nezamakhemikhali Uketshezi olungenambala. Iphuzu elibilayo lika-1.1175-177 deg C, ukuminyana kwesihlobo (20/4 deg C) 1.4627, inkomba ye-refractive (nD20). Incibilika otshwaleni ne-ether, ayincibiliki emanzini, emoyeni ukuze ibone okunsundu ngokukhanyayo.
Sebenzisa Isetshenziswa njenge-flavour

Imininingwane Yomkhiqizo

Omaka bomkhiqizo

Izimpawu Eziyingozi Xi - Irritant
Amakhodi Engozi 36/37/38 - Ukucasula amehlo, uhlelo lokuphefumula kanye nesikhumba.
Incazelo Yokuphepha I-S24/25 - Gwema ukuthintana nesikhumba namehlo.
I-S37/39 – Gqoka amagilavu ​​afanelekile kanye nokuvikela iso/ubuso
S26 – Uma uthintana namehlo, geza ngokushesha ngamanzi amaningi futhi ufune iseluleko sezokwelapha.
I-WGK Germany 3
I-RTECS I-LU9120000
I-TSCA Yebo
Ikhodi ye-HS 29321900
Inothi Lengozi Iyacasula

 

Isingeniso

I-Furoyl acetate, eyaziwa nangokuthi i-acetylsalicylate, iyinhlanganisela yezinto eziphilayo. Okulandelayo yisingeniso sezakhiwo, ukusetshenziswa, izindlela zokulungiselela kanye nolwazi lokuphepha lwe-furfuryl acetate:

 

Ikhwalithi:

I-Furfuryl acetate iwuketshezi oluphuzi oluphuzi olungenambala olunephunga elikhethekile. Incibilika ezinhlobonhlobo zezinyibilikisi eziphilayo, njenge-alcohols nama-ethers, ezingeni lokushisa elilingana negumbi.

 

Ukusetshenziswa: Inephunga elimnandi lesithelo futhi ivamise ukusetshenziselwa ekwenzeni izinambitheka nezinongo ukuze kwandiswe iphunga nokunambitha komkhiqizo. I-Furfur acetate nayo ingasetshenziswa ezinhlelweni zezimboni ezifana nezingubo, amapulasitiki kanye nerabha.

 

Indlela:

I-Furfur acetate ngokuvamile ilungiswa ngokusabela kwe-esterification, umsebenzi othize uwukusabela i-furfuric acid ne-acetic anhydride, ukwengeza ama-esterification catalysts njenge-sulfuric acid noma i-ammonium formate, futhi isabele ezingeni lokushisa elithile kanye nesikhathi. Ekupheleni kokusabela, ukungcola kususwa ngokuphelelwa amanzi emzimbeni kanye ne-distillation ukuze kutholakale i-furfuryl acetate ehlanzekile.

 

Ulwazi Lokuphepha:

I-Furfuryl acetate inobuthi obuphansi, kodwa ukuhogela isikhathi eside kungase kube nemiphumela emibi yezempilo. I-Furfur acetate iwuketshezi oluvutha umlilo futhi kufanele igcinwe kude namalangabi avulekile kanye nemithombo yokushisa ephezulu, futhi igcinwe endaweni epholile, nengenamoya. Naka izinyathelo zokuzivikela ngesikhathi sokusebenzisa, njengokugqoka izibuko zokuzivikela, amagilavu ​​okuzivikela nezingubo zokuzivikela. Uma kuchitheka noma kunoshevu, thatha izinyathelo ezifanele zosizo lokuqala ngokushesha futhi ufune usizo lwezokwelapha kusenesikhathi.


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