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mankhwala

2-6-dimethyl-pyrazine (CAS#108-50-9)

Chemical Property:

Molecular Formula C6H8N2
Molar Misa 108.14
Kuchulukana 0.965(50.0000 ℃)
Melting Point 35-40°C (kuyatsa)
Boling Point 154°C (kuyatsa)
Pophulikira 127°F
Nambala ya JECFA 767
Kusungunuka kwamadzi Zosungunuka m'madzi.
Kusungunuka Chloroform, Methanol (Pang'ono)
Kuthamanga kwa Vapor 3.87mmHg pa 25°C
Maonekedwe Mwala wachikasu wonyezimira wonyezimira
Mtundu Wachikasu wotuwa
Mtengo wa BRN 1726
pKa 2.49±0.10 (Zonenedweratu)
PH 7 (H2O, 20 ℃)
Mkhalidwe Wosungira -20 ° C
Refractive Index 1.5000
MDL Chithunzi cha MFCD00006148
Zakuthupi ndi Zamankhwala Makhiristo a block mpaka achikasu okhala ndi fungo la khofi ndi mtedza wokazinga. Malo osungunuka ndi 48 °c ndipo malo owira ndi 155 °c. Zosungunuka m'madzi ndi organic solvents.
Gwiritsani ntchito Kwa zakudya zosiyanasiyana, zokonzedwa, zokometsera

Tsatanetsatane wa Zamalonda

Zolemba Zamalonda

Zizindikiro Zowopsa R10 - Yoyaka
R22 - Zowopsa ngati zitamezedwa
R37/38 - Zokwiyitsa dongosolo la kupuma ndi khungu.
R41 - Kuopsa kwa kuwonongeka kwakukulu kwa maso
R11 - Yoyaka Kwambiri
Kufotokozera Zachitetezo S16 - Khalani kutali ndi magwero oyatsira.
S26 - Mukakhudza maso, yambani nthawi yomweyo ndi madzi ambiri ndikupempha uphungu wachipatala.
S39 - Valani chitetezo chamaso / kumaso.
Ma ID a UN UN 1325 4.1/PG 2
WGK Germany 3
Mtengo wa RTECS UQ2975000
TSCA Inde
HS kodi 29339990
Kalasi Yowopsa 4.1
Packing Group III

 

Mawu Oyamba

2,6-Dimethylpyrazine ndi organic pawiri.

 

Ubwino:

- 2,6-Dimethylpyrazine ndi ufa wolimba womwe ndi woyera kapena wonyezimira wachikasu.

- Ili ndi kusungunuka kwabwino ndipo imatha kusungunuka m'madzi ndi zosungunulira za organic.

- Imakhala yokhazikika mumlengalenga, koma imatha kuwola pakatentha kwambiri.

 

Gwiritsani ntchito:

- 2,6-Dimethylpyrazine imagwiritsidwa ntchito kwambiri m'madera osiyanasiyana a mankhwala ndi zomangamanga.

- Itha kugwiritsidwa ntchito ngati reagent yamankhwala pakufufuza kwasayansi mu organic synthesis ndi chemistry yowunikira.

- Itha kugwiritsidwanso ntchito ngati chothandizira ma polima.

 

Njira:

- 2,6-Dimethylpyrazine ikhoza kupangidwa ndi njira zosiyanasiyana, zomwe zimakonzedwa kwambiri ndi cyclization ya styrene ndi methyl methacrylate.

 

Zambiri Zachitetezo:

- 2,6-Dimethylpyrazine ndi mankhwala otetezeka omwe amagwiritsidwa ntchito.

- Zimakwiyitsa khungu, maso, ndi thirakiti la kupuma ndipo ziyenera kutetezedwa bwino pakagwiritsidwe ntchito, pogwira, ndi posungira.

- Pewani kulowetsedwa mwangozi, kukhudzana ndi khungu ndi kupuma fumbi panthawi yogwira ntchito.

- Mukakhudzana mwangozi kapena pokoka mpweya, tsukani malo omwe akhudzidwawo ndi madzi aukhondo ndipo pitani kuchipatala mwamsanga. Mukakhala mwadzidzidzi, funani thandizo lachipatala.

 

Zomwe zili pamwambazi ndizongoyambira zokha, kuti mumve zambiri komanso kugwiritsiridwa ntchito kwapadera, chonde onani zolemba zamankhwala zoyenera kapena funsani katswiri.


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