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2-Acetyl-3-ethyl pyrazine (CAS#32974-92-8) Setšoantšo se hlahang
  • 2-Acetyl-3-ethyl pyrazine (CAS#32974-92-8) 1

2-Acetyl-3-ethyl pyrazine (CAS#32974-92-8)

Thepa ea Lik'hemik'hale:

Foromo ea limolek'hule C8H10N2O
'Misa oa Molar 150.18
Botenya 1.075g/mLat 25°C(lit.)
Melting Point EU Regulation 1223/2009
Boling Point 54-56°C1mm Hg(lit.)
Flash point 188°F
JECFA Nomoro 785
Khatello ea Mouoane 0.0258mmHg ho 25°C
Ponahalo metsi a hlakileng
Mmala Namunu e kganyang ho ya ho Bosehla ho isa ho Botala
BRN 742901
pKa 0.56±0.10(E boletsoeng esale pele)
Boemo ba polokelo E tiisitsoe ka ho omme, Mocheso oa Kamore
Refractive Index n20/D 1.515(lit.)
MDL MFCD00038028
Thepa ea 'Mele le ea Lik'hemik'hale Likristale tse sehla ho isa ho tse khanyang, linate, li-popcorn, monko oa letlalo la bohobe, hlobo le monko oa litapole. Ntho e belang 188 °c kapa 55 °c (147Pa). E qhibiliha hanyane ka metsing, e qhibiliha ka har'a metsoako ea tlhaho le ethanol (ethanol e ka 'na ea bonahala e le turbid). Lihlahisoa tsa tlhaho li fumanoa sebeteng sa kolobe, cocoa, joalo-joalo.

Lintlha tsa Sehlahisoa

Li-tag tsa Sehlahisoa

Matšoao a Kotsi Xi - Ea halefisang
Likhoutu tsa Kotsi 36/37/38 - Ho halefisa mahlo, tsamaiso ea ho hema le letlalo.
Tlhaloso ea Tšireletseho S26 - Ha u kopana le mahlo, hlatsoa hang-hang ka metsi a mangata 'me u batle keletso ea bongaka.
S36/37/39 - Apara liaparo tse loketseng tsa tšireletso, liatlana le tšireletso ea mahlo / sefahleho.
WGK Jeremane 3
TSCA Ee
Khoutu ea HS 29339900

 

Selelekela

2-Acetyl-3-ethylpyrazine ke motsoako oa lintho tse phelang. Se latelang ke selelekela sa thepa, tšebeliso, mekhoa ea ho lokisa le tlhaiso-leseling ea polokeho ea komporo:

 

Thepa: 2-acetyl-3-ethylpyrazine ke kristale e tiileng e se nang mebala e nang le mohaho o khethehileng oa nitrogen heterocyclic. E na le botsitso bo phahameng le ho se feto-fetohe ha mocheso oa kamore. E qhibiliha habonolo ka har'a lihlapolli tse ling tsa tlhaho 'me ha e qhibilihe ka metsing.

 

Tšebeliso: 2-acetyl-3-ethylpyrazine e na le mefuta e mengata ea tšebeliso ea motsoako oa tlhaho. E ka sebelisoa e le sesosa se sebetsang sa liketso tse ngata tsa bohlokoa tsa manyolo, joalo ka carbonylation, oxidation, le amination.

 

Mokhoa oa ho itokisa: Ho na le mekhoa e mengata ea ho lokisetsa 2-acetyl-3-ethylpyrazine, 'me mokhoa o sebelisoang hangata o fumanoa ka ho arabela acetylformamide le 3-ethylpyrazine. Ka ho khetheha, acetoformamide le 3-ethylpyrazine li qala ho tsoakana, li futhumatsoa tlas'a maemo a loketseng, ebe sehlahisoa se lebisitsoeng se fumanoa ka crystallization le tlhoekiso.

E ka khopisa mahlo, letlalo le tsamaiso ea ho hema, ’me thepa e loketseng ea tšireletso e kang likhalase, liatlana, le limaske tse sireletsang li lokela ho roaloa ha motho a buuoa. Tabeng ea ho kopana ka phoso kapa ho hema motsoako ona, hlatsoa kapa u buisane le ngaka hang-hang.

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