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

Ipropati yeMichiza:

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: Ulwelo

酸度系数(pKa): 9.72±0.10(Kuqikelelwe)

颜色: Icacile engenambala ukuya kumthubi, inokuba mnyama ngexesha lokugcinwa

气味 (Ivumba): kwi-0.10% kwipropylene glycol. isilwanyana foxy fruity umdiliya skunky

香型: isulfure

Thumela i-imeyile kuthi

Iinkcukacha zeMveliso

Iithegi zeMveliso

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

Ngokwenyama:
Imbonakalo: Ngokuqhelekileyo ayinambala ukuya kulwelo olukhanyayo olutyheli olunevumba elikhethekileyo.
Indawo yokubilisa: Ngokuqhelekileyo kwi-190 - 192 °C (kuxinzelelo oluqhelekileyo lwe-atmospheric), uluhlu lwamanqaku okubilisa lunokwahluka kancinci ngokuxhomekeke kwiimeko zovavanyo kunye nokucoceka.
Uxinaniso: Uxinaniso olunxulumeneyo lumalunga ne-1.07 (amanzi = 1), okuthetha ukuba bunzima kancinci kunamanzi kwaye ngexesha lokugcinwa kunye nokusetyenziswa, luya kuba kumaleko asezantsi ukuba axutywe namanzi.
Ukunyibilika: Inyibilika kancinane emanzini, kodwa ixutywa kuninzi lwezinyibilikisi eziphilayo ezifana ne-ethanol, i-ether, i-acetone, njl., nto leyo eyenza ukuba ibandakanyeke ngokubanzi ekuphenduleni kweenkqubo ezahlukeneyo zokunyibilikisa kwiimpendulo ze-organic synthesis.
Iimpawu zemichiza:
Ukusebenza kwakhona kweqela elisebenzayo: Iqela le-sulfhydryl (-SH) kwimolekyuli inokusebenza okunamandla kwaye yindawo esebenzayo yeekhemikhali ezininzi. Inokungena kwi-condensation reaction kunye ne-carbonyl compounds ezifana ne-aldehydes kunye ne-ketones ukwenza iikhompawundi ze-thioether; Isenokuthi kwakhona ingene endaweni yokusabela ngehalogenated hydrocarbons ukwenza iibhondi zekhabhoni-sulphur ezintsha, ezinokuthi zisetyenziswe ukwakha ubume bemolekyuli entsonkothileyo.
Uzinzo: Uzinzile kubushushu begumbi kunye noxinzelelo, kodwa phantsi kweemeko zokukhanya, ubushushu obuphezulu okanye ubukho be-oxidants ezomeleleyo, amaqela e-sulfhydryl anokuthi abe ne-oxidized, okukhokelela kutshintsho kwiimpawu zemichiza yeekhompawundi, ngoko kufuneka zigcinwe kwaye zisetyenziswe phantsi kweemeko ezifanelekileyo, kwaye kuyacetyiswa ngokubanzi ukuba zigcinwe kwindawo epholileyo, engenamoya kunye nemnyama, kwaye ugweme ukudibana nee-oxidants ezinamandla.
Indlela yokudibanisa:
Ngokuqhelekileyo ilungiselelwe yi-esterification ye-3-mercaptopropionic acid kunye ne-ethanol phambi kwe-catalyst ye-acidic efana ne-concentrated sulfuric acid. Ngexesha lokuphendula, okokuqala, iqela le-carboxyl kunye neqela le-hydroxyl le-ethanol lifumana i-nucleophilic substitution reaction phantsi kweemeko ze-acidic ukuze zenze i-ester bonds, kwaye ngexesha elifanayo amanzi aveliswa. Ekupheleni kokuphendula, imveliso kufuneka ihlanjululwe ngokulandelelana kwamanyathelo emva kokucubungula njengokungathathi hlangothi, ukuhlamba amanzi, kunye ne-distillation ukufumana i-Ethyl 3-Mercaptopropionate ephezulu.
Sebenzisa:
Intsimi yevumba: Inevumba elikhethekileyo kwaye isetyenziswa njengendawo ephakathi kwiziqholo ezenziweyo kwishishini levumba, elinokongeza incasa ekhethekileyo kunye nokubekwa kwincasa edityanisiweyo, kwaye ihlala isetyenziselwa ukudibanisa iziqholo ezifana neziqhamo kunye nenyama ukuhlangabezana neemfuno. lokutya, izithambiso kunye namanye amashishini okuxutywa kwevumba.
Intsimi yamachiza: Ingasetyenziselwa njengento ekrwada okanye ephakathi kwi-synthesis yeziyobisi ukwakha izakhiwo ze-molecular kunye nemisebenzi ethile ye-biological. Umzekelo, ekudityanisweni kwamachiza athile anesulfure, amaqela awo e-sulfhydryl anokwaziswa kwimolekyuli ekujoliswe kuyo ngokusabela kweekhemikhali, ngaloo ndlela enikezela ngemisebenzi ethile yezamayeza kwichiza, njenge-antioxidant, antimicrobial, okanye elawula umsebenzi we-enzyme.
EzoLimo: Ukwanalo nesicelo esithile ekudibaneni kwezibulali zinambuzane, ngokuguqula ubume bemolekyuli kunye nokwazisa amaqela athile asebenzayo, ukuze abonise iziphumo ezilungileyo zokulawula izitshabalalisi okanye iintsholongwane kwizityalo, ezinceda ekuphuculeni isivuno kunye nomgangatho wezityalo. kunye nokuqinisekisa uzinzo lwemveliso yezolimo.