4-Dimethyl-5-Acetyl Thiazole (CAS # 38205-60-6)
| Risk Codes | R36/37/38 - Kab mob rau qhov muag, ua pa thiab tawv nqaij. R43 - Tej zaum yuav ua rau mob ntawm daim tawv nqaij R22 - Ua phem yog tias nqos |
| 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. S37/39 - Hnav cov hnab looj tes tsim nyog thiab tiv thaiv qhov muag / ntsej muag S36/37/39 - Hnav cov khaub ncaws tiv thaiv tsim nyog, hnab looj tes thiab tiv thaiv qhov muag / ntsej muag. |
| WGK Germany | 3 |
| HS Code | 293499 0 |
Taw qhia
2,4-Dimethyl-5-acetylthiazole yog cov organic compound. Cov hauv qab no yog kev qhia txog cov khoom, kev siv, kev npaj thiab cov ntaub ntawv kev nyab xeeb ntawm cov khoom sib xyaw no:
Zoo:
- Cov tsos mob: 2,4-Dimethyl-5-acetylthiazole yog cov xim tsis muaj xim rau lub teeb daj crystalline lossis hmoov hmoov.
- Solubility: Nws yog soluble nyob rau hauv feem ntau cov organic solvents xws li ethanol, ether thiab acetone, thiab me ntsis soluble nyob rau hauv dej.
Siv:
- Cov tshuaj tua kab: 2,4-dimethyl-5-acetylthiazole yog cov tshuaj tua kab dav dav siv los tswj cov kab tsuag xws li nplooj nplooj kab npauj thiab cab cab.
Txoj kev:
- 2,4-Dimethyl-5-acetylthiazole feem ntau yog npaj los ntawm reacting 2,4-dimethylthiazole nrog cov tshuaj acylating xws li acetyl chloride. Cov tshuaj tiv thaiv yog nqa tawm nyob rau hauv ib tug tsim nyog hnyav, rhuab thiab stirred rau ib lub sij hawm ntawm lub sij hawm, thiab ces purified los ntawm crystallization los yog suction pom.
Cov ntaub ntawv kev nyab xeeb:
- Hnav cov cuab yeej tiv thaiv tus kheej tsim nyog xws li hnab looj tes (lab) thiab tsom iav tiv thaiv thaum ua haujlwm.
- Tsis txhob sib cuag ntawm daim tawv nqaij thiab nqus tau cov plua plav, pa taws, lossis cov pa roj los ntawm qhov sib xyaw.
- Thaum khaws cia, khaws cia rau hauv lub thawv airtight, kom deb ntawm hluav taws thiab oxidants.
- Thaum siv, nws yog ib qho tsim nyog yuav tsum ua raws li cov txheej txheem kev nyab xeeb uas cuam tshuam thiab ua kom tsim nyog cov kev pab cuam sai sai thaum muaj xwm txheej. Nyob rau hauv cov ntaub ntawv ntawm kev huam yuaj los yog kev huam yuaj, nrhiav kev kho mob tam sim ntawd.
