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mankhwala

Pyrazine (CAS#290-37-9) Chithunzi Chowonetsedwa
  • Pyrazine (CAS#290-37-9) 1

Pyrazine (CAS#290-37-9)

Chemical Property:

Molecular Formula Chithunzi cha C4H4N2
Molar Misa 80.09
Kuchulukana 1.031 g/mL pa 25 °C (kuyatsa)
Melting Point 50-56 °C (kuyatsa)
Boling Point 115-116 °C (kuyatsa)
Pophulikira 132 ° F
Nambala ya JECFA 951
Kusungunuka kwamadzi SOLUBLE
Kusungunuka Zosungunuka m'madzi, ethanol, ether, etc.
Kuthamanga kwa Vapor 19.7mmHg pa 25°C
Maonekedwe Mwala woyera
Specific Gravity 1.031
Mtundu Choyera
Merck 14,7957
Mtengo wa BRN 103905
pKa 0.65 (pa 27 ℃)
Mkhalidwe Wosungira Sungani pansi +30 ° C.
Kukhazikika Wokhazikika. Zoyaka kwambiri. Zosagwirizana ndi ma acid, oxidizing agents.
Zomverera Hygroscopic
Refractive Index 1.5235
MDL Mtengo wa MFCD00006122
Gwiritsani ntchito Amagwiritsidwa ntchito ngati mankhwala apakatikati, Essence, Fragrance Intermediates

Tsatanetsatane wa Zamalonda

Zolemba Zamalonda

Zizindikiro Zowopsa R36/37/38 - Zokwiyitsa maso, kupuma komanso khungu.
R11 - Yoyaka Kwambiri
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 1325 4.1/PG 2
WGK Germany 3
Mtengo wa RTECS UQ2015000
TSCA T
HS kodi 29339990
Kalasi Yowopsa 4.1
Packing Group III

 

Mawu Oyamba

Mankhwala a Heterocyclic okhala ndi maatomu awiri a heteronitrogen pa malo 1 ndi 4. Ndi isomer kwa pyrimidine ndi pyridazine. Kusungunuka m'madzi, mowa ndi ether. Ili ndi kununkhira kofooka, kofanana ndi pyridine. Sikophweka kuti mulowe m'malo mwa electrophilic, koma ndizosavuta kusinthana ndi ma nucleophiles.

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