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2-3-Diethyl-5-Methylpyrazine(CAS#18138-04-0 ) Setšoantšo se Hlahisitsoeng
  • 2-3-Diethyl-5-Methylpyrazine(CAS#18138-04-0 ) 1

2-3-Diethyl-5-Methylpyrazine(CAS#18138-04-0 )

Thepa ea Lik'hemik'hale:

Foromo ea limolek'hule C9H14N2
'Misa oa Molar 150.22
Botenya 0.949 g/mL ho 25 °C (hote.)
Boling Point 95 °C (20 mmHg)
Flash point 176°F
JECFA Nomoro 777
Ho qhibiliha ha Metsi TS'ELISITSOE KHABANE
Solubility Chloroform, Methanol
Khatello ea Mouoane 0.515mmHg ho 25°C
Ponahalo makhethe
Matla a Khoheli a khethehileng 0.950.949
Mmala Hlakileng Colorless
pKa 2?+-.0.10(E boletsoeng esale pele)
Boemo ba polokelo 2-8°C
Refractive Index n20/D 1.498(lit.)
Thepa ea 'Mele le ea Lik'hemik'hale Mokelikeli o se nang 'mala ho isa ho o mosehla o khanyang, monko oa kofi le litholoana. E qhibiliha ka metsing empa e le turbid, e qhibiliha ka har'a oli le metsoako ea lintho tse phelang, e kopanya ka ethanol mocheso oa kamore. Sebaka se belang 203 °c. Lihlahisoa tsa tlhaho li fumanoa ka kofi, makotomane, lihlahisoa tsa litapole, joalo-joalo.
Sebelisa Bakeng sa kofi, nama, lipompong, 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.
Li-ID tsa UN NA 1993 / PGIII
WGK Jeremane 3
TSCA Ee
Khoutu ea HS 29339900
Sehlopha sa Likotsi 3
Sehlopha sa ho paka III

 

Selelekela

2,3-Diethyl-5-methylpyrazine ke motsoako oa lintho tse phelang, tse tsejoang hape e le DEET (N,N-diethyl-3-methylphenylethylamine).

 

Tse latelang ke tse ling tsa thepa ea 2,3-diethyl-5-methylpyrazine:

 

1. Ponahalo: DEET ke mokelikeli o se nang 'mala ho isa ho o mosehla o khanyang.

2. Monko: E na le monko o monko o monate.

3. Solubility: DEET e qhibiliha ka har'a lino tse tahang, li-ethers le li-solvents tse ngata tsa tlhaho, empa e na le ho qhibiliha ho fokolang metsing.

 

Tšebeliso e ka sehloohong ea 2,3-diethyl-5-methylpyrazine ke ntho e lelekang mafu a bakoang ke likokoanyana le likokoanyana. E sebetsa hantle khahlanong le ho longoa ke likokoanyana tse fapa-fapaneng tse kang menoang, liboseleise le lintsintsi, joalo-joalo.

 

Mokhoa oa ho lokisetsa 2,3-diethyl-5-methylpyrazine hangata o etsoa ke catalytic tlatsetso karabelo ea benzylamine le chloroacetic acid, ka pel'a alkali, ho hlahisa N-benzyl-N-methylacetamide, 'me joale ka dehydration karabelo ho fumana. DEET. Mokhoa o khethehileng oa ho itokisa o ka fetoloa ho latela maemo a itseng le li-reagents tsa karabelo.

 

Boitsebiso ba Tšireletso: 2,3-Diethyl-5-methylpyrazine e nkoa e batla e sireletsehile tlas'a maemo a tloaelehileng a tšebeliso. Ho hlokahala tlhokomeliso ha ho sebelisoa batho ba itseng, joalo ka bana, basali ba baimana le ba anyesang, le batho ba nang le allergy ho DEET. Ho pepeseha ho feteletseng ka nako e telele ho DEET ho ka baka litlamorao tse mpe joalo ka ho kula ha letlalo le ho hlohlona ha mahlo, kahoo hlatsoa matsoho a hau le libaka tse pepeneng hantle ka mor'a hore u li sebelise. Haeba ho na le ho se thabise kapa ho hlaha maikutlo a mabe, khaotsa ho sebelisa hang-hang 'me u buisane le ngaka.

  • E fetileng:
  • E 'ngoe:
    • Ngola molaetsa wa hao mona mme o re romele wona

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