3 5-difluorobenzoic acid (CAS # 455-40-3)
| 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. 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 |
Taw qhia
3,5-Difluorobenzoic acid 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:
- 3,5-Difluorobenzoic acid yog cov xim tsis muaj xim lossis dawb crystalline hmoov.
- Nws yuav luag insoluble hauv dej ntawm chav tsev kub, tab sis soluble hauv cov kuab tshuaj organic xws li ethanol, ether, thiab lwm yam.
- Lub compound muaj ib tug muaj zog pungent tsw thiab yog corrosive.
Siv:
- 3,5-Difluorobenzoic acid feem ntau yog siv los ua ib qho tseem ceeb nruab nrab thiab reagent hauv organic synthesis.
- Cov compound tuaj yeem siv rau hauv cov tshuaj fluorination thiab cov tshuaj tiv thaiv sib txuas ntawm cov tshuaj tsw qab hauv cov organic synthesis.
Txoj kev:
- Txoj kev npaj ntawm 3,5-difluorobenzoic acid tuaj yeem tau txais los ntawm cov tshuaj tiv thaiv ntawm benzoic acid thiab hydrofluoric acid nyob rau hauv lub xub ntiag ntawm catalyst.
- Nyob rau hauv cov kev mob tshwm sim, benzoic acid yog tov nrog hydrofluoric acid thiab rhuab, thiab cov tshuaj tiv thaiv yog nqa tawm nyob rau hauv qhov kev txiav txim ntawm ib tug catalyst los tsim 3,5-difluorobenzoic acid.
Cov ntaub ntawv kev nyab xeeb:
- 3,5-Difluorobenzoic acid yog cov tshuaj tiv thaiv kab mob uas tuaj yeem ua rau khaus ntawm daim tawv nqaij thiab qhov muag, thiab cov khoom siv tiv thaiv tus kheej tsim nyog yuav tsum hnav.
- Kev saib xyuas yuav tsum tau ua kom tsis txhob muaj kev sib cuag nrog cov oxidizing muaj zog thiab muaj zog alkaline tshuaj thaum siv los yog khaws cia cov tshuaj no kom tsis txhob muaj kev phom sij txaus ntshai.
- Tsis txhob nqus cov pa ntau dhau ntawm 3,5-difluorobenzoic acid, vim tias nws muaj ntxhiab tsw.
