4-Nitrophenol CAS Nr 100-02-7
| Hazard Cov Cim | Xn – Ua phem |
| Risk Codes | R20/21/22 - Ua phem los ntawm kev nqus pa, tiv thaiv daim tawv nqaij thiab yog tias nqos. R33 - Kev phom sij ntawm cov teebmeem tshwm sim |
| UN IDs | 1663 |
4-Nitrophenol CAS Nr 100-02-7
zoo
Lub teeb daj crystals, tsw tsw. Me ntsis soluble hauv dej ntawm chav tsev kub (1.6%, 250 ° C). Soluble nyob rau hauv ethanol, chlorophenol, ether. Soluble nyob rau hauv carbonate daws ntawm caustic thiab alkali hlau thiab daj. Nws yog flammable, thiab muaj kev pheej hmoo ntawm combustion tawg nyob rau hauv cov ntaub ntawv ntawm qhib nplaim taws, kub kub los yog kev sib cuag nrog oxidant. Cov tshuaj lom ammonia oxide flue gas yog tso tawm los ntawm kev sib cais cua sov.
Txoj kev
Nws yog npaj los ntawm nitrification ntawm phenol rau hauv o-nitrophenol thiab p-nitrophenol, thiab ces sib cais o-nitrophenol los ntawm chav distillation, thiab tseem tuaj yeem hydrolyzed los ntawm p-chloronitrobenzene.
siv
Siv raws li tawv preservative. Nws tseem yog cov khoom siv raw rau kev tsim cov dyes, tshuaj, thiab lwm yam, thiab tseem tuaj yeem siv los ua pH qhia rau monochrome, nrog rau cov xim hloov ntawm 5.6 ~ 7.4, hloov ntawm tsis muaj xim mus rau daj.
kev ruaj ntseg
Nas thiab nas qhov ncauj LD50: 467mg/kg, 616mg/kg. Tshuaj lom! Nws muaj zog irritating nyhuv ntawm daim tawv nqaij. Nws tuaj yeem nqus tau los ntawm daim tawv nqaij thiab ua pa. Kev sim tsiaj tuaj yeem ua rau lub cev kub thiab lub siab thiab lub raum puas. Nws yuav tsum tau muab cais tawm ntawm oxidants, txo cov neeg ua haujlwm, alkalis, thiab cov tshuaj noj tau, thiab yuav tsum tsis txhob sib xyaw.
