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2-Methylthio pyrazine (CAS#21948-70-9)) Isithombe Esifakiwe
  • 2-Methylthio pyrazine (CAS#21948-70-9) 1

2-Methylthio pyrazine (CAS#21948-70-9)

Isakhiwo Samakhemikhali:

I-Molecular Formula I-C5H6N2S
I-Molar Mass 126.18
Ukuminyana 1.19±0.1 g/cm3(Kubikezelwe)
I-Melting Point 44 °C
I-Boling Point 221.2±20.0 °C(Kubikezelwe)
I-Flash Point 87.6°C
Inombolo ye-JECFA 796
Ukuncibilika encibilikayo ku-Methanol
I-Vapor Presure 0.161mmHg ku-25°C
Ukubukeka okuqinile
Umbala Okumhlophe kuya kokuwolintshi kuya kokuluhlaza
Iphunga nutty, sweet, meaty, flavour kancane eluhlaza
I-BRN 878423
pKa 0.10±0.10(Kubikezelwe)
Isimo Sesitoreji Kuvalwe endaweni eyomile, Ngezinga lokushisa Legumbi
I-Refractive Index 1.574
Sebenzisa Ukusetshenziswa kwansuku zonke, ukunambitheka kokudla

Imininingwane Yomkhiqizo

Omaka bomkhiqizo

Izimpawu Eziyingozi I-Xn - Iyingozi
Amakhodi Engozi I-R22 – Iyingozi uma igwinywe
R37/38 – Ukucasula uhlelo lokuphefumula kanye nesikhumba.
R41 – Ingozi yokulimala okubi emehlweni
Incazelo Yokuphepha S22 - Ungaphefumuli uthuli.
I-S24/25 - Gwema ukuthintana nesikhumba namehlo.
S39 – Gqoka ukuvikela iso / ubuso.
S26 – Uma uthintana namehlo, geza ngokushesha ngamanzi amaningi futhi ufune iseluleko sezokwelapha.
I-WGK Germany 3
I-TSCA Yebo
Ikhodi ye-HS 29339900

 

Isingeniso

I-2-Methylthiopyrazine iyinhlanganisela yezinto eziphilayo. Okulandelayo yisingeniso sezakhiwo, ukusetshenziswa, izindlela zokulungiselela kanye nolwazi lokuphepha lwe-2-methylthiopyrazine:

 

Ikhwalithi:

- I-2-Methylthiopyrazine iyikristalu ekhanyayo ephuzi ekhanyayo noma i-crystalline powder enephunga elibuthakathaka lesibabule.

- I-alkaline uma incibilika emanzini futhi ingancibilika kuzo zombili izixazululo ezine-asidi ne-alkaline.

- Uma kushisa noma kubasiwe, i-2-methylthiopyrazine ikhipha amagesi anobuthi.

 

Sebenzisa:

- I-2-Methylthiopyrazine isetshenziswa kakhulu ekuhlanganiseni kwamakhemikhali njenge-catalyst noma i-ligand yokusabela kwe-organic synthesis.

 

Indlela:

- Ukulungiswa kwe-2-methylthiopyrazine kuvame ukutholwa ngokusabela kwe-sulfide nge-2-chloropyridine. Isinyathelo esiqondile ukusabela i-2-chloropyridine ne-sodium sulfide ku-solvent ephilayo ukuze uthole umkhiqizo we-2-methylthiopyrazine.

 

Ulwazi Lokuphepha:

I-2-Methylthiopyrazine iyinhlanganisela enobuthi futhi kufanele igwenywe ekuhogeleni, ekungeniseni, noma ekuthinteni isikhumba namehlo.

- Izimpahla zokuzivikela ezifanele ezifana namagilavu, izibuko zamehlo, nezingubo zokugqoka kufanele zigqokwe lapho zisetshenziswa noma zilungiswa.

- Kufanele isetshenziswe endaweni enomoya omuhle ukuze kugwenywe ukugcwala kwawo komhwamuko okweqa umkhawulo wokuphepha.

- Lapho uyigcina, kufanele igcinwe ivalwe ngokuqinile, kude nomlilo nama-oxidants.

- Uma kwenzeka ukuthintana ngephutha noma ukudlile, funa usizo lwezokwelapha ngokushesha.

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