4-Chloro-2-fluorobenzoic acid (CAS # 446-30-0)
Risk thiab Safety
| Risk Codes | R36/37/38 - Kab mob rau qhov muag, ua pa thiab 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. S36 - Hnav khaub ncaws tiv thaiv zoo. S37/39 - Hnav cov hnab looj tes tsim nyog thiab tiv thaiv qhov muag / ntsej muag |
| WGK Germany | 3 |
| HS Code | 291639 0 |
| Hazard Class | IRRITANT |
446-30-0 - Cov ntaub ntawv siv
| Daim ntawv thov | 4-chloro-2-fluoro-benzoic acid yog ib qho tseem ceeb nruab nrab ntawm cov organic synthesis thiab tshuaj, nws yog dav siv nyob rau hauv fungicides, ATX inhibitors, NHE3 inhibitors thiab NMDA receptor antagonists. |
| Cov khoom siv tshuaj | dawb los yog dawb crystals. Melting point 206-210 ° C. |
| Daim ntawv thov | siv los ua tshuaj tua kab thiab tshuaj nruab nrab |
Kev taw qhia luv luv
4-Chloro-2-fluorobenzoic acid yog cov organic compound. Cov hauv qab no yog kev qhia txog nws cov khoom, kev siv, kev tsim khoom thiab cov ntaub ntawv kev nyab xeeb:
Zoo:
4-Chloro-2-fluorobenzoic acid yog cov khoom siv lead ua, feem ntau tsis muaj xim lossis daj daj. Nws yog non-volatile ntawm chav tsev kub. Nws muaj qhov tsw qab thiab tuaj yeem yaj hauv cov kuab tshuaj organic xws li methanol, ethanol, methylene chloride, thiab lwm yam.
Siv:
4-Chloro-2-fluorobenzoic acid muaj ntau yam kev siv hauv kev lag luam tshuaj. Nws feem ntau yog siv los ua cov khoom pib lossis nruab nrab hauv cov organic synthesis. Nws tseem tuaj yeem siv los ua khoom noj rau catalysts thiab cov khoom siv hluav taws xob.
Txoj kev:
4-Chloro-2-fluorobenzoic acid tuaj yeem tau los ntawm chlorination ntawm p-fluorobenzoic acid. Feem ntau, hydrogen chloride lossis chlorous acid tuaj yeem cuam tshuam nrog thionyl chloride lossis sulfinyl chloride nyob rau hauv cov kua qaub, ua raws li cov tshuaj tiv thaiv nrog hydrogen fluoride kom tau 4-chloro-2-fluorobenzoic acid.
Cov ntaub ntawv kev nyab xeeb:
Kev ceev faj txog kev nyab xeeb hauv qab no yuav tsum tau ua thaum tuav 4-chloro-2-fluorobenzoic acid: tsis txhob sib cuag nrog cov tawv nqaij thiab qhov muag, thiab ua tib zoo saib xyuas cov kev tiv thaiv xws li hnav tsom iav thiab hnab looj tes. Nws yuav tsum tau ua nyob rau hauv ib qho chaw zoo-ventilated los tiv thaiv inhalation los yog nqos. Tsis txhob sib cuag nrog cov khoom siv hluav taws xob thiab kom deb ntawm cov nplaim taws qhib lossis qhov kub thiab txias. Nws yuav tsum tau muab kaw kom nruj thaum siv los yog khaws cia thiab deb ntawm acids, bases, thiab oxidants. Thaum muaj qhov xau, yuav tsum tau ua kom tsim nyog ntsuas kev kub ntxhov, xws li nqus cov kua nrog lub desiccant lossis ntxuav nws nrog cov tshuaj adsorbent tsim nyog.
