2-Methoxypyrazine CAS # 3149-28-8
| Hazard Cov Cim | Xn – Ua phem |
| Risk Codes | R10 - Flammable 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 | S16 - Khaws kom deb ntawm qhov chaw hluav taws xob. S26 - Thaum sib cuag nrog lub qhov muag, yaug tam sim ntawd nrog dej txaus thiab nrhiav kev kho mob. S39 - Hnav qhov muag / ntsej muag tiv thaiv. |
| UN IDs | UN 1993 3/PG 3 |
| WGK Germany | 3 |
| TSCA | Yog lawm |
| HS Code | 293399 0 |
| Hazard Class | 3 |
| Packing Group | III |
Taw qhia
2-Methoxypyrimidine yog ib qho organic compound. Nws yog ib tug dawb crystalline khoom nrog ib tug peculiar tsw. Cov hauv qab no yog kev qhia txog cov khoom, kev siv, kev npaj thiab cov ntaub ntawv kev nyab xeeb ntawm 2-methoxypyrazine:
Zoo:
- Cov tsos: Dawb crystalline khoom
- Solubility: Soluble nyob rau hauv cawv, ethers thiab ester solvents, me ntsis soluble nyob rau hauv dej
Siv:
- 2-Methoxypyrazine tuaj yeem siv rau hauv kev lag luam dyeing los ua cov organic dyes.
Txoj kev:
- 2-Methoxypyrazine feem ntau yog tau los ntawm cov tshuaj tiv thaiv ntawm 2-hydroxypyrazine thiab methanol. 2-Hydroxypyrazine yog reacted nrog sodium formate los yog sodium carbonate los tsim cov sodium ntsev, thiab tom qab ntawd ntxiv methanol ntau dhau los ua cov tshuaj tiv thaiv ntawm qhov tsim nyog kub thiab lub sij hawm tshuaj tiv thaiv. Cov khoom 2-methoxypyrazine tau txais los ntawm kev kho acidic, crystallization, ziab thiab lwm cov kauj ruam.
Cov ntaub ntawv kev nyab xeeb:
- 2-Methoxypyrazine yog khaus thiab yuav tsum tsis txhob sib cuag nrog daim tawv nqaij thiab qhov muag.
- Ceev faj thaum siv nws, xws li hnav qhov muag thiab tiv thaiv ua pa.
- Tsis txhob nqus, noj, lossis sib cuag nrog plua plav, roj av, lossis kev daws teeb meem ntawm qhov sib xyaw.
- Ua kom muaj qhov cua zoo thaum lub sijhawm ua haujlwm.
- Khaws 2-methoxypyrazine rau hauv qhov chaw qhuav, txias, qhov cua zoo kom deb ntawm hluav taws thiab oxidants.
