2-Methylthio pyrazine (CAS # 21948-70-9)
| Hazard Cov Cim | Xn – Ua phem |
| Risk Codes | R22 - Ua phem yog tias nqos R37/38 - Kab mob ua pa thiab tawv nqaij. R41 - Riam phom loj rau qhov muag |
| Kev nyab xeeb piav qhia | S22 - Tsis txhob nqus plua plav. S24/25 - Tsis txhob sib cuag nrog daim tawv nqaij thiab qhov muag. S39 - Hnav qhov muag / ntsej muag tiv thaiv. S26 - Thaum sib cuag nrog lub qhov muag, yaug tam sim ntawd nrog dej txaus thiab nrhiav kev kho mob. |
| WGK Germany | 3 |
| TSCA | Yog lawm |
| HS Code | 29339900 ib |
Taw qhia
2-Methylthiopyrazine yog ib qho organic compound. Cov hauv qab no yog kev qhia txog cov khoom, kev siv, kev npaj thiab cov ntaub ntawv kev nyab xeeb ntawm 2-methylthiopyrazine:
Zoo:
- 2-Methylthiopyrazine yog xim tsis muaj xim rau lub teeb daj daj lossis crystalline hmoov nrog cov ntxhiab tsw ntxhiab tsw.
- Nws yog alkaline thaum yaj hauv dej thiab tuaj yeem yaj hauv ob qho tib si acidic thiab alkaline daws.
- Thaum tshav kub los yog hluav taws kub, 2-methylthiopyrazine tso tawm cov pa phem.
Siv:
- 2-Methylthiopyrazine yog dav siv nyob rau hauv tshuaj synthesis raws li ib tug catalyst los yog ligand rau organic synthesis tshuaj.
Txoj kev:
- Kev npaj ntawm 2-methylthiopyrazine feem ntau tau txais los ntawm cov tshuaj tiv thaiv sulfide nrog 2-chloropyridine. Cov kauj ruam tshwj xeeb yog los ua 2-chloropyridine nrog sodium sulfide hauv cov organic hnyav kom tau txais cov khoom ntawm 2-methylthiopyrazine.
Cov ntaub ntawv kev nyab xeeb:
- 2-Methylthiopyrazine yog ib qho tshuaj lom neeg thiab yuav tsum zam kom tsis txhob nqus tau, noj, lossis sib cuag ntawm daim tawv nqaij thiab qhov muag.
- Cov cuab yeej tiv thaiv tus kheej tsim nyog xws li hnab looj tes, tsom iav, thiab hnav ris tsho yuav tsum hnav thaum siv lossis npaj.
- Nws yuav tsum tau siv nyob rau hauv ib qho chaw zoo-ventilated kom tsis txhob nws vapor concentration tshaj qhov txwv kev nyab xeeb.
- Thaum khaws cia, nws yuav tsum tau muab kaw kom nruj, kom deb ntawm hluav taws thiab oxidants.
- Thaum muaj kev sib cuag los yog kev noj tshuaj, mus nrhiav kev kho mob tam sim ntawd.
