4-Bromo-2-nitrobenzoic acid (CAS # 99277-71-1)
| Risk Codes | R22 - Ua phem yog tias nqos R36/37/38 - Kab mob rau qhov muag, ua pa thiab tawv nqaij. R43 - Tej zaum yuav ua rau mob ntawm daim tawv nqaij R50 - Muaj tshuaj lom rau cov kab mob hauv dej |
| 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 - Hnav cov khaub ncaws tiv thaiv thiab hnab looj tes tsim nyog. S61 - Tsis txhob tso tawm rau ib puag ncig. Xa mus rau cov lus qhia tshwj xeeb / cov ntaub ntawv kev nyab xeeb. |
| UN IDs | UN 3077 9/PG 3 |
| WGK Germany | 2 |
| HS Code | 291639 0 |
| Hazard Class | IRRITANT |
| Packing Group | III |
Taw qhia
4-Bromo-2-nitrobenzoic acid yog cov organic compound, feem ntau abbreviated li BNBA. Cov hauv qab no yog kev qhia txog nws cov khoom, kev siv, kev tsim khoom thiab cov ntaub ntawv kev nyab xeeb:
Zoo:
- Cov tsos mob: 4-Bromo-2-nitrobenzoic acid yog dawb crystalline khoom.
- Solubility: Nws tuaj yeem ua tau zoo soluble hauv cov organic solvents xws li ethanol, chloroform thiab dimethylformamide.
Siv:
- Pigment teb: Cov tshuaj no tuaj yeem siv los npaj qee cov xim tshwj xeeb.
Txoj kev:
- Kev npaj ntawm 4-bromo-2-nitrobenzoic acid feem ntau yog tau los ntawm reacting 2-nitrobenzoic acid thiab bromine nyob rau hauv acidic tej yam kev mob. Rau txoj kev npaj tshwj xeeb, thov xa mus rau cov ntaub ntawv organic synthesis.
Cov ntaub ntawv kev nyab xeeb:
- Cov khoom xyaw muaj qee yam khaus, thiab kev tiv thaiv xws li hnav hnab looj tes, tsom iav, thiab lwm yam, yuav tsum tau ua thaum ua haujlwm.
- Khaws kom deb ntawm cov nplaim taws thiab cov khoom kub kub, thiab khaws cia rau hauv qhov chaw txias, qhuav.
- Muaj cov ntaub ntawv toxicity tsis txaus, qhov toxicity ntawm 4-bromo-2-nitrobenzoic acid tsis paub, thiab ceev faj yuav tsum tau siv thaum siv los yog tuav nws, thiab cov kev ua haujlwm zoo yuav tsum tau ua raws.
