I-Ethyl 3-Mercaptopropionate (CAS#5466-6-8)

Isakhiwo Samakhemikhali:

沸点: 75-76 °C/10 mmHg(lit.)

密度: 1.059 g/mL ku-20 °C(lit.)

折射率: n20/D 1.457(lit.)

闪点: 72°C

形态: Uketshezi

酸度系数(pKa): 9.72±0.10(Okubikezelwe)

颜色: Kucace kungenambala ukuya kokuphuzi, kungase kube mnyama ngesikhathi sokugcina

气味 (Iphunga): ku-0.10% ku-propylene glycol. isilwane foxy izithelo zomvini skunky

香型: isibabule

Thumela i-imeyili kithi

Imininingwane Yomkhiqizo

Omaka bomkhiqizo

I-Ethyl 3-Mercaptopropionate (CAS#5466-6-8) Isingeniso

Okomzimba:
Ukubukeka: Imvamisa engenambala uketshezi olukhanyayo oluphuzi olukhanyayo olunephunga elikhethekile.
Indawo yokubilisa: Ngokujwayelekile ku-190 – 192 °C (ngokucindezela okujwayelekile komkhathi), ibanga lephoyinti lokubilisa lingahluka kancane kuye ngezimo zokuhlola nobumsulwa.
Ukuminyana: Ukuminyana okuhlobene kucishe kube ngu-1.07 (amanzi = 1), okusho ukuthi asinda kancane kunamanzi futhi ngesikhathi sokugcinwa nokusetshenziswa, kuzoba kungqimba olungezansi uma kuhlanganiswe namanzi.
Ukunyibilika: kuncibilika kancane emanzini, kodwa kuxubene nezinyibilikisi eziningi eziphilayo njenge-ethanol, i-ether, i-acetone, njll., okuyenza ibandakanyeke kabanzi ekuphenduleni kwezinhlelo ezihlukahlukene zezincibilikisi ekuphenduleni kwe-organic synthesis.
Izakhiwo zamakhemikhali:
Ukusebenza kabusha kweqembu elisebenzayo: Iqembu le-sulfhydryl (-SH) ku-molecule linokusebenza okunamandla futhi liyindawo esebenzayo yokuhlangana kwamakhemikhali amaningi. Ingabhekana nokusabela kwe-condensation ngezinhlanganisela ze-carbonyl ezifana ne-aldehydes nama-ketones ukwenza izinhlanganisela ze-thioether; Ingase futhi ibhekane nokusabela okushintshwayo ngama-halogenated hydrocarbons ukwakha ibhondi entsha ye-carbon-sulphur, engasetshenziswa ukwakha izakhiwo eziyinkimbinkimbi zamangqamuzana ezinto eziphilayo.
Ukuzinza: Iyazinza emazingeni okushisa asekamelweni nasekucindezelweni, kodwa ngaphansi kwezimo zokukhanya, izinga lokushisa eliphezulu noma ukuba khona kwama-oxidants aqinile, amaqembu e-sulfhydryl angase afakwe i-oxidized, okuholela ekushintsheni kwezakhiwo zamakhemikhali zenhlanganisela, ngakho-ke kudingeka zigcinwe futhi zisetshenziswe ngaphansi kwezimo ezifanele, futhi ngokuvamile kuyanconywa ukuthi zigcinwe endaweni epholile, enomoya futhi emnyama, futhi ugweme ukuthintana nama-oxidants aqinile.
Indlela Yokuhlanganisa:
Ngokuvamile ilungiswa nge-esterification ye-3-mercaptopropionic acid ene-ethanol phambi kwe-catalyst ene-acidic njenge-concentrated sulfuric acid. Phakathi nokusabela, okokuqala, iqembu le-carboxyl kanye neqembu le-hydroxyl le-ethanol libhekana nokusabela kwe-nucleophilic substitution ngaphansi kwezimo ze-asidi ukuze kwakhiwe izibopho ze-ester, futhi ngesikhathi esifanayo amanzi akhiqizwa. Ekupheleni kokusabela, umkhiqizo udinga ukuhlanzwa ngochungechunge lwezinyathelo zangemuva kokucubungula ezifana nokungathathi hlangothi, ukuwashwa kwamanzi, nokucwiliswa emanzini ukuze uthole ukuhlanzeka okuphezulu kwe-Ethyl 3-Mercaptopropionate.
Sebenzisa:
Insimu yephunga: Inephunga eliyingqayizivele futhi isetshenziswa njengephunga eliphakathi embonini yephunga elimnandi, elingafaka ukunambitheka okukhethekile kanye nesendlalelo kuma-flavour ahlanganisiwe, futhi ngokuvamile lisetshenziselwa ukuhlanganisa ukunambitheka okufana nezithelo nenyama ukuhlangabezana nezidingo. zokudla, izimonyo nezinye izimboni zokuhlukanisa iphunga elimnandi.
Inkambu yezemithi: Ingasetshenziswa njengempahla eluhlaza noma emaphakathi ekuhlanganiseni kwezidakamizwa ukuze kwakhiwe izakhiwo zamangqamuzana ezinemisebenzi ethile yebhayoloji. Isibonelo, ekuhlanganisweni kweminye imithi equkethe isulfure, amaqembu awo e-sulfhydryl angangeniswa engqamuzaneni eqondiwe ngokuhlangana kwamakhemikhali, ngaleyo ndlela anikeze imisebenzi ethile yezokwelapha emthini, njenge-antioxidant, antimicrobial, noma elawula umsebenzi wama-enzyme.
Ezolimo: Iphinde ibe nohlelo oluthile ekuhlanganisweni kwezibulala-zinambuzane, ngokushintsha ukwakheka kwayo kwamangqamuzana futhi yethule amaqembu athile asebenzayo, ukuze ibonise imiphumela emihle yokulawula izinambuzane noma amagciwane ezitshalweni, okusiza ukuthuthukisa isivuno kanye nekhwalithi yezitshalo. kanye nokuqinisekisa ukuzinza kokukhiqizwa kwezolimo.