4-nitrotoluene; p-nitrotoluene
Alaye ipilẹ:
English orukọ:4-Nitrotoluene;
CAS nọmba: 99-99-0
Ilana molikula: C7H7NO2
iwuwo molikula: 137.14
EINECS nọmba: 202-808-0
Ilana igbekalẹ:
Awọn ẹka ti o jọmọ: Awọn ohun elo aise kemikali Organic; Nitro agbo; Agbedemeji ipakokoropaeku.
Ojuami yo: 52-54°C (tan.)
Oju ibi farabale: 238 °C (tan.)
iwuwo: 1.392 g/mL ni 25 °C (tan.)
Refractive atọka: n20 / D 1.5382
Filasi ojuami: 223 °F
Solubility: insoluble ninu omi, tiotuka ni ethanol, ether ati benzene.
Awọn ohun-ini: Imọlẹ ofeefee rhombic hexagonal gara.
Ipa oru: 5 mm Hg (85°C)
| Specification | Unit | Standard |
| Ifarahan | Yellowish ri to | |
| Akọkọ akoonu | % | ≥99.0% |
| Ọrinrin | % | ≤0.1 |
O jẹ ohun elo aise kemikali pataki, ti a lo ni akọkọ bi agbedemeji ti ipakokoropaeku, dai, oogun, ṣiṣu ati awọn iranlọwọ okun sintetiki. Iru bii chloromyron herbicide, ati bẹbẹ lọ, tun le ṣe p-toluidine, p-nitrobenzoic acid, p-nitrotoluene sulfonic acid, 2-chloro-4-nitrotoluene, 2-nitro-4-methylaniline, dinitrotoluene ati bẹbẹ lọ.
Ọna igbaradi ni lati ṣafikun toluene si riakito nitrification, tutu si isalẹ 25 ℃, ṣafikun acid adalu (nitric acid 25% ~ 30%, sulfuric acid 55% ~ 58% ati omi 20% ~ 21%), iwọn otutu dide, ṣatunṣe iwọn otutu ko kọja 50 ℃, tẹsiwaju lati aruwo fun awọn wakati 1 ~ 2 lati pari iṣesi, duro fun 6h, iyapa nitrobenzene ti ipilẹṣẹ, fifọ, fifọ alkali, ati bẹbẹ lọ. Iwe kemikali robi nitrotoluene ni o-nitrotoluene, p-nitrotoluene ati m-nitrotoluene ninu. Nitrotoluene robi ti wa ni distilled ni igbale, julọ ti o-nitrotoluene ti wa ni niya, awọn iyokù ida ti o ni awọn diẹ p-nitrotoluene ti wa ni niya nipa igbale distillation, ati awọn p-nitrotoluene ti wa ni gba nipa itutu ati crystallization, ati awọn meta-nitrobenzene ti wa ni gba. nipa distillation lẹhin ikojọpọ ni iya oti nigba ti Iyapa ti para.
ilu galvanized 200kg / ilu; Iṣakojọpọ ni ibamu si awọn ibeere alabara. Itura ati ventilated, kuro lati ina, ooru orisun, se orun taara, yago fun ina.
