Ucingo:+86 21 6460 6569
isibhengezo_sekhasi

umkhiqizo

I-Pyrazine (CAS#290-37-9) Isithombe Esifakiwe
  • I-Pyrazine (CAS#290-37-9) 1

I-Pyrazine (CAS#290-37-9)

Isakhiwo Samakhemikhali:

I-Molecular Formula I-C4H4N2
I-Molar Mass 80.09
Ukuminyana 1.031 g/mL ku-25 °C (okhanyisiwe)
I-Melting Point 50-56 °C (okhanyisiwe)
I-Boling Point 115-116 °C (okhanyisiwe)
I-Flash Point 132°F
Inombolo ye-JECFA 951
Ukuncibilika kwamanzi I-SOLUBLE
Ukuncibilika Incibilika emanzini, ethanol, ether, njll.
I-Vapor Presure 19.7mmHg ku-25°C
Ukubukeka Ikristalu elimhlophe
I-Gravity ethize 1.031
Umbala Emhlophe
I-Merck 14,7957
I-BRN 103905
pKa 0.65(ku-27℃)
Isimo Sesitoreji Gcina ngaphansi kuka +30°C.
Ukuzinza Izinzile. Ivutha kakhulu. Akuhambisani nama-acids, ama-oxidizing agents.
Kuyazwela I-Hygroscopic
I-Refractive Index 1.5235
I-MDL I-MFCD00006122
Sebenzisa Isetshenziswa njengama-intermediate emithi, i-Essence, i-Fragrance Intermediates

Imininingwane Yomkhiqizo

Omaka bomkhiqizo

Amakhodi Engozi R36/37/38 – Ukucasula amehlo, uhlelo lokuphefumula kanye nesikhumba.
I-R11 – Ivutha Kakhulu
Incazelo Yokuphepha S26 – Uma uthintana namehlo, geza ngokushesha ngamanzi amaningi futhi ufune iseluleko sezokwelapha.
S36 – Gqoka izingubo ezifanele zokuzivikela.
S16 – Zigcine kude nemithombo yokuthungela.
Ama-ID e-UN UN 1325 4.1/PG 2
I-WGK Germany 3
I-RTECS UQ2015000
I-TSCA T
Ikhodi ye-HS 29339990
I-Hazard Class 4.1
Iqembu Lokupakisha III

 

Isingeniso

Ama-Heterocyclic compounds aqukethe ama-athomu amabili e-heteronitrogen ezindaweni 1 no-4. I-isomer ku-pyrimidine ne-pyridazine. Incibilika emanzini, otshwaleni ne-ether. Ine-aromatics ebuthakathaka, efana ne-pyridine. Akulula ukubhekana nokusabela kwe-electrophilic substitution, kodwa kulula ukubhekana nokusabela okushintshwayo ngama-nucleophile.

  • Okwedlule:
  • Olandelayo:
    • Bhala umyalezo wakho lapha futhi usithumelele wona

    imikhiqizo ehlobene