2 4-Dichloropyrimidine (CAS # 3934-20-1)
| Hazard Cov Cim | Xi-xaj |
| Risk Codes | 36/37/38 – Khaus qhov muag, ua pa thiab tawv nqaij. |
| Kev nyab xeeb piav qhia | S26 - Thaum sib cuag nrog lub qhov muag, yaug tam sim ntawd nrog dej txaus thiab nrhiav kev kho mob. S36 - Hnav khaub ncaws tiv thaiv zoo. S28A - |
| UN IDs | 1759 ib |
| WGK Germany | 3 |
| TSCA | Yog lawm |
| HS Code | 293359 0 |
| Hazard Class | 8 |
| Packing Group | III |
Taw qhia
2,4-Dichloropyrimidine 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 2,4-dichloropyrimidine:
Zoo:
- 2,4-Dichloropyrimidine yog cov xim tsis muaj kob uas muaj ntxhiab tsw.
- Nws muaj tsawg solubility hauv dej thiab ntau dua solubility hauv cov kuab tshuaj organic.
Siv:
- 2,4-Dichloropyrimidine yog ib hom tshuaj tua kab uas siv los tswj cov nroj tsuag hauv cov qoob loo.
Txoj kev:
- 2,4-Dichloropyrimidine tuaj yeem npaj los ntawm reacting pyrimidine nrog cov roj chlorine. Dissolve pyrimidines nyob rau hauv ferrous chloride thiab cua sov rau qhov tsim nyog kub. Tom qab ntawd, cov tshuaj chlorination yog ua los ntawm kev qhia cov roj chlorine rau hauv cov tshuaj tiv thaiv. Lub hom phiaj cov khoom yog tau los ntawm crystallization thiab purification cov kauj ruam.
Cov ntaub ntawv kev nyab xeeb:
- 2,4-Dichloropyrimidine yog ib yam khoom ua rau khaus khaus uas yuav ua rau khaus khaus, tawv nqaij, thiab ua pa.
- Thaum siv 2,4-dichloropyrimidine, hnav hnab looj tes tiv thaiv tsim nyog, tsom iav, thiab qhov ncauj qhov ntswg kom muaj cua zoo.
- Tam sim ntawd tom qab kis rau 2,4-dichloropyrimidine, ntxuav thaj chaw muaj dej txaus thiab nrhiav kev kho mob sai.
- Thaum lub sijhawm khaws cia thiab tuav, kev sib cuag nrog cov oxidants thiab cov kua qaub muaj zog yuav tsum zam kom tsis txhob muaj kev phom sij txaus ntshai.
