2 5-difluorobenzonitrile (CAS # 64248-64-2)
| Risk Codes | R20/21/22 - Ua phem los ntawm kev nqus pa, tiv thaiv daim tawv nqaij thiab yog tias nqos. R36/37/38 - Kab mob rau 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. S36/37/39 - Hnav cov khaub ncaws tiv thaiv tsim nyog, hnab looj tes thiab tiv thaiv qhov muag / ntsej muag. S36/37 - Hnav cov khaub ncaws tiv thaiv thiab hnab looj tes tsim nyog. |
| UN IDs | UN 1325 4.1/PG 2 |
| WGK Germany | 3 |
| HS Code | 2926 90 90 ib |
| Kev Ceeb Toom | Tshuaj lom |
| Hazard Class | 6.1 |
| Packing Group | III |
Taw qhia
2,5-Difluorobenzonitrile yog cov organic compound. Cov hauv qab no yog kev qhia txog qee yam khoom, kev siv, kev npaj thiab cov ntaub ntawv kev nyab xeeb ntawm 2,5-difluorobenzonitrile:
Zoo:
- 2,5-Difluorobenzonitrile yog cov xim tsis muaj xim rau daj ntseg daj nrog cov ntxhiab tsw.
- 2,5-difluorobenzonitrile yuav luag insoluble hauv dej ntawm chav tsev kub, tab sis soluble nyob rau hauv organic solvents xws li ethanol, acetone, thiab lwm yam.
- Nws yog ib qho kev sib xyaw nrog cov ntxhiab tsw muaj zog.
Siv:
- 2,5-Difluorobenzonitrile yog dav siv nyob rau hauv cov organic synthesis raws li ib tug tshuaj reagent rau kev npaj ntawm lwm cov organic tebchaw.
- Nws yog feem ntau siv rau hauv cov tshuaj fluorination thiab cov tshuaj tsw qab aromatization vim hais tias kev qhia txog fluorine atoms tuaj yeem hloov cov khoom ntawm cov tebchaw, ua rau lawv cov hydrophobicity thiab tshuaj stability.
Txoj kev:
- 2,5-difluorobenzonitrile tuaj yeem npaj los ntawm cov tshuaj tsw qab hloov pauv. Ib txoj hauv kev npaj ntau yog ua rau cov tshuaj para-dinitrobenzene nrog nitrosamines catalyzed los ntawm cuprous chloride thiab hydrofluoric acid kom tau 2,5-difluorobenzonitrile.
Cov ntaub ntawv kev nyab xeeb:
- Thaum tuav 2,5-difluorobenzonitrile, hnav cov cuab yeej tiv thaiv tsim nyog xws li hnab looj tes tiv thaiv tshuaj, tsom iav, thiab lub tsho tiv no.
- Nws yog ib qho ua kom khaus khaus uas yuav ua rau khaus ntawm qhov muag, tawv nqaij, thiab ua pa.
- Kev nqus pa ntawm nws cov vapors lossis hmoov av, daim tawv nqaij thiab qhov muag yuav tsum zam thaum tuav.
- Kev ceev faj yuav tsum tau them nyiaj rau kev tiv thaiv hluav taws thiab tawg thaum lub sij hawm cia thiab siv, thiab kom deb ntawm qhov hluav taws kub thiab oxidants.
