3 4-DIBROMOPYRIDINE (CAS # 13534-90-2)
Risk thiab Safety
| 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. S36 - Hnav khaub ncaws tiv thaiv zoo. |
| Hazard Class | IRRITANT |
Taw qhia
3,4-Dibromopyridine (CAS # 13534-90-2) yog cov organic compound nrog cov tshuaj formula C5H3Br2N. 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:
3,4-Dibromopyridine yog cov xim tsis muaj xim rau daj ntseg daj nrog cov ntxhiab tsw ntxhiab tsw. Nws yog soluble hauv cov kuab tshuaj organic xws li ethanol, chloroform thiab dimethylformamide ntawm qhov kub thiab txias. Nws nthuav tawm ntau dua melting thiab boiling point.
Siv:
3,4-Dibromopyridine muaj cov ntawv thov tseem ceeb hauv cov organic synthesis. Nws tuaj yeem siv los ua ib qho catalyst lossis cov tshuaj tiv thaiv nruab nrab los koom nrog ntau yam kev cuam tshuam cov organic, xws li Suzuki coupling cov tshuaj tiv thaiv, C-C daim ntawv cog lus tsim cov tshuaj tiv thaiv, thiab lwm yam. Tsis tas li ntawd, nws kuj tuaj yeem siv rau hauv kev npaj tshuaj, dyes thiab polymer compounds.
Txoj Kev Npaj:
Txoj kev npaj ntawm 3,4-dibromopyridine yog qhov yooj yim. Ib txoj hauv kev zoo tshaj plaws yog ua kom cov pyridine nrog bromine nyob rau hauv qhov tsim nyog cov tshuaj tiv thaiv los tsim 3,4-dibromopyridine. Cov tshuaj tiv thaiv tuaj yeem nqa tawm ntawm qhov kub thiab txias lossis cua sov.
Cov ntaub ntawv kev nyab xeeb:
Kev saib xyuas kev nyab xeeb yog xav tau thaum tuav 3,4-dibromopyridine. Nws yuav ua rau khaus lossis puas rau qhov muag, tawv nqaij, thiab ua pa. Yog li, cov cuab yeej tiv thaiv tsim nyog xws li tsom iav kev nyab xeeb, hnab looj tes thiab khaub ncaws tiv thaiv yuav tsum hnav thaum ua haujlwm. Tsis txhob nqus nws cov vapor, thiab nws yog qhov zoo tshaj rau kev khiav lag luam hauv qhov chaw zoo. Thaum muab pov tseg, ua raws li cov cai hauv zos thiab pov tseg kom raug. Yog tias koj muaj kev txhawj xeeb txog kev noj qab haus huv lossis kev nyab xeeb, koj yuav tsum tig mus rau tus kws tshaj lij tam sim ntawd.
Xwm:
3,4-Dibromopyridine yog cov xim tsis muaj xim rau daj ntseg daj nrog cov ntxhiab tsw ntxhiab tsw. Nws yog soluble hauv cov kuab tshuaj organic xws li ethanol, chloroform thiab dimethylformamide ntawm qhov kub thiab txias. Nws nthuav tawm ntau dua melting thiab boiling point.
Siv:
3,4-Dibromopyridine muaj cov ntawv thov tseem ceeb hauv cov organic synthesis. Nws tuaj yeem siv los ua ib qho catalyst lossis cov tshuaj tiv thaiv nruab nrab los koom nrog ntau yam kev cuam tshuam cov organic, xws li Suzuki coupling cov tshuaj tiv thaiv, C-C daim ntawv cog lus tsim cov tshuaj tiv thaiv, thiab lwm yam. Tsis tas li ntawd, nws kuj tuaj yeem siv rau hauv kev npaj tshuaj, dyes thiab polymer compounds.
Txoj Kev Npaj:
Txoj kev npaj ntawm 3,4-dibromopyridine yog qhov yooj yim. Ib txoj hauv kev zoo tshaj plaws yog ua kom cov pyridine nrog bromine nyob rau hauv qhov tsim nyog cov tshuaj tiv thaiv los tsim 3,4-dibromopyridine. Cov tshuaj tiv thaiv tuaj yeem nqa tawm ntawm qhov kub thiab txias lossis cua sov.
Cov ntaub ntawv kev nyab xeeb:
Kev saib xyuas kev nyab xeeb yog xav tau thaum tuav 3,4-dibromopyridine. Nws yuav ua rau khaus lossis puas rau qhov muag, tawv nqaij, thiab ua pa. Yog li, cov cuab yeej tiv thaiv tsim nyog xws li tsom iav kev nyab xeeb, hnab looj tes thiab khaub ncaws tiv thaiv yuav tsum hnav thaum ua haujlwm. Tsis txhob nqus nws cov vapor, thiab nws yog qhov zoo tshaj rau kev khiav lag luam hauv qhov chaw zoo. Thaum muab pov tseg, ua raws li cov cai hauv zos thiab pov tseg kom raug. Yog tias koj muaj kev txhawj xeeb txog kev noj qab haus huv lossis kev nyab xeeb, koj yuav tsum tig mus rau tus kws tshaj lij tam sim ntawd.
Sau koj cov lus ntawm no thiab xa tuaj rau peb
