4-nitrotoluene; p-nitrotoluene
Bayanan asali:
Sunan Ingilishi:4-Nitrotoluene;
Lambar CAS: 99-99-0
Tsarin kwayoyin halitta: C7H7NO2
Nauyin Kwayoyin: 137.14
Lambar EINECS: 202-808-0
Tsarin tsari:
Rukunin da ke da alaƙa: albarkatun albarkatun halitta; Nitro mahadi; Tsakanin magungunan kashe qwari.
Matsayin narkewa: 52-54 ° C (lit.)
Matsayin tafasa: 238 ° C (lit.)
Yawa: 1.392 g/mL a 25 ° C (lit.)
Fihirisar magana: n20/D 1.5382
Wutar walƙiya: 223 °F
Solubility: insoluble a cikin ruwa, mai narkewa a cikin ethanol, ether da benzene.
Properties: Haske rawaya rhombic hexagonal crystal.
Matsin tururi: 5 mm Hg (85 ° C)
| Specification | Unit | Standard |
| Bayyanar | Yellowish m | |
| Babban abun ciki | % | ≥99.0% |
| Danshi | % | ≤0.1 |
Abu ne mai mahimmancin sinadari, wanda aka fi amfani dashi azaman tsaka-tsaki na magungunan kashe qwari, rini, magani, filastik da kayan haɗin fiber na roba. Irin su chloromyron herbicide, da sauransu, kuma suna iya kera p-toluidine, p-nitrobenzoic acid, p-nitrotoluene sulfonic acid, 2-chloro-4-nitrotoluene, 2-nitro-4-methylaniline, dinitrotoluene da sauransu.
Hanyar shiri shine don ƙara toluene zuwa ga mai sarrafa nitrification, kwantar da shi zuwa ƙasa 25 ℃, ƙara cakuda acid (nitric acid 25% ~ 30%, sulfuric acid 55% ~ 58% da ruwa 20% ~ 21%), zazzabi. yakan, daidaita zafin jiki kada ya wuce 50 ℃, ci gaba da motsawa don 1 ~ 2 hours don kawo karshen dauki, tsaya ga 6h, da generated nitrobenzene rabuwa, wanka, alkali wanka, da dai sauransu. Littafin sinadari ɗanyen nitrotoluene ya ƙunshi o-nitrotoluene, p-nitrotoluene da m-nitrotoluene. Danyen nitrotoluene yana distilled a cikin injin, yawancin o-nitrotoluene ya rabu, ragowar juzu'in da ke dauke da ƙarin p-nitrotoluene an raba shi ta hanyar distillation, kuma p-nitrotoluene yana samuwa ta hanyar sanyaya da crystallization, kuma ana samun meta-nitrobenzene. ta hanyar distillation bayan tarawa a cikin mahaifiyar giya a lokacin rabuwa na para.
ganga galvanized 200kg/drum; Shiryawa bisa ga bukatun abokin ciniki. Sanyi da iska, nesa da wuta, tushen zafi, hana hasken rana kai tsaye, guje wa haske.
