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sehlahisoa

2-Methoxy pyrazine (CAS#3149-28-8)

Thepa ea Lik'hemik'hale:

Foromo ea limolek'hule C5H6N2O
'Misa oa Molar 110.11
Botenya 1.14 g/mL ho 25 °C (hote.)
Boling Point 60-61 °C/29 mmHg (hote.)
Flash point 114°F
JECFA Nomoro 787
Khatello ea Mouoane 4.24mmHg ho 25°C
Ponahalo metsi a hlakileng
Matla a Khoheli a khethehileng 1.140
Mmala E se nang mmala ho isa ho Hoo e batlang e se na mmala
BRN 2241
pKa 0.53±0.10(E boletsoeng esale pele)
Boemo ba polokelo E tiisitsoe ka ho omme, Mocheso oa Kamore
Refractive Index n20/D 1.509(lit.)
Thepa ea 'Mele le ea Lik'hemik'hale Mokelikeli o se nang 'mala ho isa ho o mosehla, o nang le monko o kang oa kernel le oa linaoa tsa cocoa. Ntho e Belang 61 °c [3866PA (29mmHg)]. E qhibiliha ka har'a ethanol, ha e qhibilihe ka metsing.
Sebelisa Bakeng sa tšebeliso ea letsatsi le letsatsi, tatso ea lijo

Lintlha tsa Sehlahisoa

Li-tag tsa Sehlahisoa

Matšoao a Kotsi Xn - E Kotsi
Likhoutu tsa Kotsi R10 – E ka cha
R22 – E kotsi ha e kwetswe
R37/38 – E tenang tsamaiso ya ho hema le letlalo.
R41 – Kotsi ya tshenyo e kgolo mahlong
Tlhaloso ea Tšireletseho S16 - Ipoloke hole le mehloli ea mollo.
S26 - Ha u kopana le mahlo, hlatsoa hang-hang ka metsi a mangata 'me u batle keletso ea bongaka.
S39 - Apara ts'ireletso ea mahlo / sefahleho.
Li-ID tsa UN UN 1993 3/PG 3
WGK Jeremane 3
TSCA Ee
Khoutu ea HS 29339990
Sehlopha sa Likotsi 3
Sehlopha sa ho paka III

 

Selelekela

2-Methoxypyrimidine ke motsoako oa lintho tse phelang. Ke kristale e tšoeu e tiileng e nang le monko o ikhethang. Se latelang ke selelekela sa thepa, tšebeliso, mekhoa ea ho lokisa le tlhaiso-leseling ea polokeho ea 2-methoxypyrazine:

 

Boleng:

- Ponahalo: E tiileng ka kristale e tšoeu

- Solubility: E qhibiliha ka har'a lino tse tahang, li-ether le li-solvents tsa ester, tse qhibilihang hanyane ka metsing

 

Sebelisa:

- 2-Methoxypyrazine e ka boela ea sebelisoa indastering ea dae ho etsa lidae tsa tlhaho.

 

Mokhoa:

- 2-Methoxypyrazine hangata e fumanoa ka karabelo ea 2-hydroxypyrazine le methanol. 2-Hydroxypyrazine e arajoa ka sodium formate kapa sodium carbonate ho etsa letsoai le tsamaisanang le sodium, ebe ho eketsoa methanol e feteletseng ho phethahatsa karabelo ka mocheso o nepahetseng le nako ea karabelo. Sehlahisoa sa 2-methoxypyrazine se fumanoe ka phekolo ea acidic, crystallization, ho omisa le mehato e meng.

 

Lintlha tsa Tšireletseho:

- 2-Methoxypyrazine e halefisa 'me e lokela ho qojoa ho kopana le letlalo le mahlo.

- Ela hloko ha u e sebelisa, joalo ka ho roala mahlo le tšireletso ea ho hema.

- Qoba ho hema, ho kenya, kapa ho kopana le lerole, likhase kapa litharollo tsa motsoako.

- Netefatsa maemo a matle a moea nakong ea ts'ebetso.

- Boloka 2-methoxypyrazine sebakeng se omeletseng, se phodileng, se nang le moea o pholileng hole le mollo le li-oxidants.

 


  • E fetileng:
  • E 'ngoe:

  • Ngola molaetsa wa hao mona mme o re romele wona