4-nitrotoluene; p-nitrotoluene
Basic Information:
Zita rechirungu:4-Nitrotoluene;
CAS nhamba: 99-99-0
Molecular formula: C7H7NO2
Molecular uremu: 137.14
EINECS nhamba: 202-808-0
Structural formula:
Zvikamu zvinoenderana: Organic makemikari mbishi zvinhu; Nitro compounds; Mushonga wezvipembenene uri pakati.
Kunyungudika: 52-54 °C (lit.)
Kuvira kwenzvimbo: 238 °C (lit.)
Density: 1.392 g/mL pa25 °C (lit.)
Refractive index: n20/D 1.5382
Painopenya: 223 °F
Solubility: isinganyungudika mumvura, inonyungudika mu ethanol, ether uye benzene.
Zvivakwa: Chiedza yeyero rhombic hexagonal crystal.
Kutsikirira kwemhepo: 5 mm Hg (85 °C)
| Specification | Unit | Sstandard |
| Chitarisiko | Yellowish yakasimba | |
| Main content | % | ≥99.0% |
| Unyoro | % | ≤0.1 |
Iyo yakakosha kemikari mbishi zvinhu, inonyanya kushandiswa sepakati pemishonga yezvipembenene, dhayi, mushonga, mapurasitiki uye synthetic fiber anobatsira. Zvakadai semishonga inonzi chloromyron, nezvimwewo, inogonawo kugadzira p-toluidine, p-nitrobenzoic acid, p-nitrotoluene sulfonic acid, 2-chloro-4-nitrotoluene, 2-nitro-4-methylaniline, dinitrotoluene zvichingodaro.
Nzira yekugadzirira ndeyekuwedzera toluene kune nitrification reactor, kuitonhodza kusvika pasi pe25 ℃, wedzera iyo yakasanganiswa asidhi (nitric acid 25% ~ 30%, sulfuric acid 55% ~ 58% uye mvura 20% ~ 21%), tembiricha inokwira, gadzirisa tembiricha kuti isapfuure 50 ℃, ramba uchimutsa kwemaawa maviri ~ 2 h, ramba uchimutsa kwemaawa maviri ~ 1 h. nitrobenzene kupatsanurwa, kugeza, alkali kugeza, zvichingodaro. Chemicalbook crude nitrotoluene ine o-nitrotoluene, p-nitrotoluene uye m-nitrotoluene. Iyo isina kuchena nitrotoluene yakasvibiswa muvacuum, yakawanda ye-o-nitrotoluene inoparadzaniswa, chikamu chakasara chine p-nitrotoluene yakawanda inoparadzaniswa ne-vacuum distillation, uye p-nitrotoluene inowanikwa nekutonhodza uye crystallization, uye meta-nitrotoluene inowanikwa ne distimulation mukati me ac lipaquation mushure me ac lipaquation.
galvanized drum 200kg / drum; Kurongedza zvinoenderana nezvinodiwa nemutengi. Kutonhorera uye kufefeterwa, kure nemoto, kunobva kupisa, kudzivirira zuva rakananga, kudzivirira chiedza.
