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mankhwala

2-Methyl pyrazine (CAS#109-08-0)

Chemical Property:

Molecular Formula C5H6N2
Molar Misa 94.11
Kuchulukana 1.03 g/mL pa 25 °C (kuyatsa)
Melting Point -29 °C (kuyatsa)
Boling Point 135 °C/761 mmHg (kuyatsa)
Pophulikira 122 ° F
Nambala ya JECFA 761
Kusungunuka kwamadzi Zosakanikirana bwino m'madzi.
Kuthamanga kwa Vapor 9.69mmHg pa 25°C
Maonekedwe Madzi
Mtundu Zowoneka bwino zopanda mtundu mpaka zachikasu pang'ono
Mtengo wa BRN 105778
pKa 1.45 (pa 27 ℃)
Mkhalidwe Wosungira 2-8 ° C
Refractive Index n20/D 1.504(lit.)
Zakuthupi ndi Zamankhwala Kachulukidwe 1.03
malo osungunuka -29 ° C
kutentha kwa 135°C (761 torr)
Refractive index 1.5042
kutentha kwa 50 ° C
Gwiritsani ntchito Amagwiritsidwa ntchito mumakampani opanga utoto ndi mankhwala, komanso ngati chowonjezera cha chakudya

Tsatanetsatane wa Zamalonda

Zolemba Zamalonda

Zizindikiro Zowopsa R10 - Yoyaka
R22 - Zowopsa ngati zitamezedwa
R36/37/38 - Zokwiyitsa maso, kupuma komanso khungu.
Kufotokozera Zachitetezo S26 - Mukakhudza maso, yambani nthawi yomweyo ndi madzi ambiri ndikupempha uphungu wachipatala.
S36 - Valani zovala zoyenera zodzitetezera.
S16 - Khalani kutali ndi magwero oyatsira.
Ma ID a UN UN 1993 3/PG 3
WGK Germany 3
Mtengo wa RTECS UQ3675000
TSCA Inde
HS kodi 29339990
Kalasi Yowopsa 3
Packing Group III

 

Mawu Oyamba

2-methylpyridine ndi organic pawiri. Ndi madzi achikasu otumbululuka opanda mtundu komanso onunkhira ngati pyridine.

 

2-Methylpyrazine imagwiritsidwa ntchito popanga organic synthesis ngati reagent, zosungunulira komanso zapakatikati. Itha kugwiritsidwa ntchito ngati ligand zopangira zopangira zitsulo.

 

Pali njira zosiyanasiyana zopangira 2-methylpyrazine, imodzi mwazomwe zimagwiritsidwa ntchito kwambiri ndi zomwe 2-aminopyrazine ndi methylation reagents monga methyl iodide. Njira za kaphatikizidwe zinazake zimaphatikizaponso cyanide hydrogenation ndi halogenation ya halogenation.

Pogwira ntchito, njira zolowera mpweya wabwino ziyenera kuchitidwa kuti musapume mpweya kapena kukhudzana ndi khungu ndi maso. Pewani kukhudzana ndi ma okosijeni amphamvu ndi zidulo kuti mupewe zoopsa. Ngati mwakhudzana mwangozi kapena pokoka mpweya, pitani kuchipatala mwamsanga.


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