2-Bromo-4-methylbenzonitrile CAS Nr 42872-73-1
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. 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. S36/37/39 - Hnav cov khaub ncaws tiv thaiv tsim nyog, hnab looj tes thiab tiv thaiv qhov muag / ntsej muag. |
UN IDs | ib 3439 |
WGK Germany | 3 |
Hazard Class | IRRITANT, IRRITANT-H |
Taw qhia
Nws yog ib qho organic compound uas nws cov tshuaj formula yog C8H6BrN. Cov hauv qab no yog cov lus piav qhia ntawm nws qhov xwm txheej, kev siv, kev tsim thiab cov ntaub ntawv kev nyab xeeb:
Xwm:
-Cov tsos mob: tsis muaj xim rau lub teeb daj siv lead ua
- Melting point: 64-68 ° C
- Kub taw tes: 294-296 ° C
Qhov ceev: 1.51 g / ml
-Solubility: me ntsis soluble hauv dej, soluble nyob rau hauv cov organic solvents xws li ethanol, ether thiab benzene
Siv:
Nws feem ntau yog siv los ua ib qho nruab nrab hauv cov organic synthesis thiab tuaj yeem siv los npaj lwm cov organic sib txuas. Nws tuaj yeem siv rau hauv kev siv tshuaj, tshuaj tua kab, thiab hauv kev lag luam dye thiab xim.
Txoj Kev Npaj: Kev npaj ntawm
feem ntau yog ua los ntawm cov kauj ruam hauv qab no:
1. React p-methylbenzonitrile nrog bromine raws li tsim nyog cov tshuaj tiv thaiv los tsim phenol.
Cov ntaub ntawv kev nyab xeeb:
-yog ib tug muaj peev xwm organic compound thiab yuav tsum tau ceev faj.
-Thaum ua haujlwm, yuav tsum tau saib xyuas kom tsis txhob muaj kev sib cuag ncaj qha rau ntawm daim tawv nqaij, qhov muag thiab ua pa.
- Hnav cov cuab yeej tiv thaiv tus kheej tsim nyog, xws li cov hnab looj tes kuaj thiab tsom iav.
-Nws yuav tsum tau ua haujlwm nyob rau hauv qhov chaw zoo-ventilated thiab tsis txhob nqus nws vapor lossis hmoov av.
-Yog nqus tau lossis nqus tau los ntawm qhov yuam kev, nrhiav kev pab kho mob tam sim ntawd thiab qhia lub thawv lossis daim ntawv lo rau siv.
Thov nco ntsoov tias txhua yam tshuaj lom neeg yuav tsum tau siv nyob rau hauv cov chaw kuaj mob uas tsim nyog thiab ua raws li cov txheej txheem kev ua haujlwm nyab xeeb.