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sehlahisoa

2-5-Dimethyl pyrazine (CAS#123-32-0)

Thepa ea Lik'hemik'hale:

Foromo ea limolek'hule C6H8N2
'Misa oa Molar 108.14
Botenya 0.99 g/mL ho 25 °C (hote.)
Melting Point 15°C
Boling Point 155 °C (hote.)
Flash point 147°F
JECFA Nomoro 766
Solubility Chloroform (Hanyenyane), DMSO (Hanyenyane), Methanol (Hanyenyane)
Khatello ea Mouoane 3.98mmHg ho 25°C
Ponahalo Mokelikeli
Matla a Khoheli a khethehileng 0.990
Mmala Ha e na 'mala ho isa mosehla o mosehla
BRN 107052
pKa 2.21±0.10(E boletsoeng esale pele)
PH 7 (H2O)
Boemo ba polokelo Boemo bo sa tsitsang, Mocheso oa Kamore
E hloahloa Hygroscopic
Refractive Index n20/D 1.502(lit.)
Thepa ea 'Mele le ea Lik'hemik'hale Boima ba 0.99
ntlha e belang 155°C
refractive index 1.491-1.493
ntlha ea khanya ea 63°C
Sebelisa E sebelisoa indastering ea dae le ea meriana, hape e sebelisoa e le Spice ea lijo

Lintlha tsa Sehlahisoa

Li-tag tsa Sehlahisoa

Likhoutu tsa Kotsi R22 – E kotsi ha e kwetswe
R36/37/38 – Ho tena mahlo, tsamaiso ya 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 - Apara liaparo tse loketseng tsa tšireletso.
Li-ID tsa UN NA 1993 / PGIII
WGK Jeremane 3
RTECS UQ2800000
TSCA Ee
Khoutu ea HS 29339990
Tsebiso ea Kotsi E tenang

 

Selelekela

2,5-dimethylpyrazine ke motsoako oa lintho tse phelang. Se latelang ke kenyelletso ea thepa, tšebeliso, mekhoa ea ho lokisetsa le tlhahisoleseding ea polokeho ea 2,5-dimethylpyrazine.

 

Boleng:

2,5-Dimethylpyrazine ke kristale e mosehla e se nang 'mala ho ea ho leseli le nang le monko o khethehileng oa mosi, linate le kofi.

 

Sebelisa:

 

Mokhoa:

Tokisetso ea 2,5-dimethylpyrazine e ka etsoa ka mekhoa e fapaneng. Mokhoa o tloaelehileng ke ho fumana sehlahisoa se lebisitsoeng ka ammonolysis ea thioacetylacetone e lateloang ke cyclization. Ho feta moo, ho na le mekhoa e meng ea ho kopanya, joalo ka nitroation ea metsoako ea carbon, phokotso ea acyl oxime, joalo-joalo.

 

Lintlha tsa Tšireletseho:

2,5-Dimethylpyrazine e batla e bolokehile bakeng sa batho le tikoloho tlas'a maemo a tloaelehileng a tšebeliso

- Ha e kopana le letlalo le mahlo, e ka baka ho teneha le ho ruruha, 'me ho lokela ho nkoa mehato ea ho itšireletsa ha e sebelisoa, joalo ka ho apara li-gloves tse sireletsang le likhalase.

- Qoba ho hema likhase kapa lerōle nakong ea ho tšoara, kaha ho hema nako e telele ho ka baka ho teneha ha moea.

- Ho kopana le li-oxidants le li-acid tse matla ho lokela ho qojoa ha u li boloka ho qoba liketso tse kotsi.

- Ha u e lahla, e lahle ho latela melao e amehang 'me u qobe ho tsoa ka kotloloho tikolohong.

 


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