3-Bromo-5-nitrobenzoic acid (CAS # 6307-83-1)
| Risk Codes | R36/37/38 - Kab mob rau qhov muag, ua pa thiab tawv nqaij. R50 - Muaj tshuaj lom rau cov kab mob hauv dej 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. S61 - Tsis txhob tso tawm rau ib puag ncig. Xa mus rau cov lus qhia tshwj xeeb / cov ntaub ntawv kev nyab xeeb. S60 - Cov khoom no thiab nws lub thawv yuav tsum tau muab pov tseg raws li cov khoom pov tseg. S36/37 - Hnav cov khaub ncaws tiv thaiv thiab hnab looj tes tsim nyog. S37 - Hnav cov hnab looj tes tsim nyog. |
| HS Code | 291639 0 |
| Hazard Class | IRRITANT |
Taw qhia
3-Nitro-5-bromobenzoic acid (3-Bromo-5-nitrobenzoic acid) yog cov organic compound nrog cov tshuaj formula C7H4BrNO4. Cov hauv qab no yog cov lus piav qhia ntawm cov khoom, kev siv, kev npaj thiab kev nyab xeeb cov ntaub ntawv ntawm lub compound:
Xwm:
-Cov tsos mob: 3-Nitro-5-bromobenzoic acid yog lub teeb daj.
- Melting point: txog 220-225 ° C.
-Solubility: Tsawg solubility hauv dej, tab sis soluble hauv cov kuab tshuaj xws li ethanol, chloroform thiab dichloromethane.
-acid thiab alkaline: yog ib qho tsis muaj zog acid.
Siv:
-3-nitro-5-bromobenzoic acid feem ntau yog siv los ua ib qho nruab nrab hauv cov organic synthesis thiab siv rau hauv kev npaj ntawm lwm cov tebchaw.
-Nws tseem tuaj yeem siv los npaj cov khoom sib txuas xws li tshuaj, dyes thiab txheej txheej.
Txoj Kev Npaj:
Kev npaj ntawm 3-nitro-5-bromobenzoic acid tuaj yeem ua tiav los ntawm cov kauj ruam hauv qab no:
1. 3-nitrobenzoic acid tau txais los ntawm cov tshuaj tiv thaiv ntawm benzoic acid thiab nitrous acid.
2. Nyob rau hauv lub xub ntiag ntawm ferrous bromide, 3-nitrobenzoic acid yog reacted nrog sodium bromide kom tau 3-nitro-5-bromobenzoic acid.
Cov ntaub ntawv kev nyab xeeb:
3-Nitro-5-bromobenzoic acid feem ntau muaj kev nyab xeeb hauv kev siv thiab khaws cia. Txawm li cas los xij, cov teeb meem hauv qab no tseem yuav tsum tau sau tseg:
-Tsis txhob sib cuag ntawm daim tawv nqaij, nqus tau thiab noj thaum lub sijhawm ua haujlwm.
- Hnav cov khoom tiv thaiv tsim nyog xws li hnab looj tes, tsom iav, thiab daim npog ntsej muag thaum siv.
-Yog tias koj tau ntsib nrog cov khoom sib txuas, yaug tam sim nrog dej ntau thiab nrhiav kev kho mob.
-yuav tsum khaws cia kom deb ntawm hluav taws thiab oxidant, nyob rau hauv qhov chaw txias, qhuav.
Nco tseg: Cov ntaub ntawv saum toj no tsuas yog siv rau kev siv xwb. Thov ua raws li cov cai tswj kev nyab xeeb uas cuam tshuam thaum ua haujlwm hauv chav kuaj, thiab sab laj cov ntaub ntawv kev nyab xeeb ntawm cov chaw tshwj xeeb yog tias tsim nyog.
