Xov tooj
Xa Email
whatsapp
WeChat 
Pyrazine series
01
Chaw Tsim Khoom Zoo Pyrazine CAS NO.290-37-9 Cov Khoom Siv Organic Intermediate Pyrazine
| Qhov Ceev | 1.1 ± 0.1 g/cm3 |
| Kub Kub | 118.6±13.0 °C ntawm 760 mmHg |
| Melting Point | 50-56 ° C (lit.) |
| Cov Qauv Molecular | C4H4N2 |
| Qhov Hnyav Molecular | 80.088 |
| Qhov Teeb Meem | 55.6 ± 0.0 °C |
| Qhov hnyav tseeb | 80.037445 |
| PSA | 25.78 |
| LogP | -0.28 |
| Siab ntawm cov pa dej | 19.7±0.2 mmHg ntawm 25°C |
| Cov Ntawv Qhia Txog Kev Hloov Pauv | 1.503 |
| Kev khaws cia | Thaj chaw uas kub hnyiab tau |
| Kev Ruaj Ntseg | Ruaj khov. Kub hnyiab heev. Tsis sib haum nrog cov kua qaub, cov neeg sawv cev oxidizing. |
| Kev yaj dej | UA KOM YAJ |
Cov qauv qauv:
Qauv Tshuag yog Dawb & Muaj
Lub Npe Tshuaj: pyrazine
Cov lus txhais: pyrazine
Qhov hnyav molecular: C4H4N2
Tsos: Dawb rau daj khov kho
Kev Ruaj Ntseg: Ruaj khov. Kub hnyiab tau yooj yim. Tsis sib haum nrog cov kua qaub, cov neeg sawv cev oxidizing.
Cov lus qhia ntawm pyrazine
| Qhov tsos | Dawb mus rau daj khov kho | Tsim nyog |
| Kev dawb huv | ≥98% | 99.9% |
| Qhov kub yaj | 49.5-53.5 ℃ | 50.4-51.3 ℃ |
| Tsw tsw phem | Qaub iab iab, Qab zib qab zib | Tsim nyog |
| Lub Neej Txee | Ib xyoos nyob rau hauv qhov xwm txheej ntawm cov ntim khoom tsis tau qhib | |
Kev siv pyrazine
Pyridazine (290-37-9) nrog ob lub nitrogen atoms hauv 1,2 tus lej hu ua pyridazine; 1,3 tus lej hu ua pyrimidines, thiab lawv ob leeg yog isomers ntawm pyrazines. Pyrazine yog xim tsis muaj xim siv lead ua, melting point 54 ° C, boiling point 115 ~ 116 ° C (768 mm Hg), kua txheeb ze ceev 1.0311 (61/4 ° C). Nws muaj ntxhiab zoo ib yam li pyridine. Soluble hauv dej, ethanol, ether, thiab lwm yam. Pyrazine yog lub hauv paus tsis muaj zog heev. Nws cov aromatics zoo ib yam li pyridine, nws tsis zoo li yuav raug hloov pauv electrophilic, thiab nws muaj zog dua rau nucleophiles. Tom qab hydrogen ntawm cov pa roj carbon atom hloov los ntawm methyl pawg lossis halogen, hydrogen ntawm halogen lossis methyl pawg yog nquag. Pyrazines thiab lawv cov derivatives tuaj yeem tsim los ntawm ntau txoj kev.
Qhov zoo ntawm pyrazine
1. Siab purity 99.0% feeb
2. Tsis muaj kev txiav txim tsis raug cai
3. Siv ntau yam saj
4. Peb muaj daim ntawv pov thawj ISO, muaj daim ntawv pov thawj Halal thiab kosher ntawm cov khoom no.
5. Peb muaj peev xwm loj, yog li, feem ntau muaj lub sijhawm ua haujlwm sai.
6. Peb tuaj yeem muab 10g-50g qauv dawb rau koj qhov kev kuaj mob.
Kev ntim khoom ntawm pyrazine
1. Cov qauv ntim yog 20g/30g/50g ib lub raj mis.
2. Lub pob me me yog 1kg / 5kg / 10 kg ib lub raj mis.
3.25 kg ib lub nruas
Kev ntim khoom kuj tseem tuaj yeem hloov kho raws li cov neeg siv khoom xav tau
Cov xwm txheej cia khoom rau pyrazine:
Khaws cov khoom ntim kaw, khaws cia rau hauv qhov chaw cua, qhuav, tsaus ntuj hauv qhov kub ib txwm, qhov kub qis dua 20 ℃ yuav zoo dua rau kev khaws cia.