4-nitrotoluene; p-nitrotoluene
Ulwazi olusisiseko:
Igama lesiNgesi:4-Nitrotoluene;
Inombolo yeCAS: 99-99-0
Ifomula yemolekyuli: C7H7NO2
Ubunzima bemolekyuli: 137.14
Inombolo ye-EINECS: 202-808-0
Ifomula yolwakhiwo:
Iindidi eziyeleleneyo: Imathiriyeli ekrwada yeekhemikhali ze-Organic; Iikhompawundi zeNitro; Isibulali-zinambuzane siphakathi.
Indawo yokunyibilika: 52-54 °C (lit.)
Indawo yokubila: 238 °C (lit.)
Ubuninzi: 1.392 g/mL ku-25 °C (lit.)
Isalathiso se-refractive: n20 / D 1.5382
Indawo edanyazayo: 223 °F
Ukunyibilika: Ukunyibilika emanzini, ukunyibilika kwi-ethanol, i-ether kunye nebenzene.
Iipropati: Ikristale yerhombic etyheli ekhanyayo.
Uxinzelelo lomphunga: 5 mm Hg (85 °C)
| Sukucaciswa | Unit | Sumgangatho |
| Imbonakalo | Uqina olutyheli | |
| Umxholo ophambili | % | ≥99.0% |
| Ukufuma | % | ≤0.1 |
Yimathiriyeli ekrwada ebalulekileyo yeekhemikhali, ikakhulu esetyenziswa njengendawo ephakathi yesibulali-zinambuzane, idayi, iyeza, iplastiki kunye nezixhobo zefayibha zokwenziwa. Okufana ne-herbicide chloromyron, njl., Inokwenza kwakhona i-p-toluidine, i-p-nitrobenzoic acid, i-p-nitrotoluene sulfonic acid, i-2-chloro-4-nitrotoluene, i-2-nitro-4-methylaniline, i-dinitrotoluene njalo njalo.
Indlela yokulungiselela kukongeza i-toluene kwi-nitrification reactor, iphole ibe ngaphantsi kwe-25 ℃, yongeza i-asidi edibeneyo (i-nitric acid 25% ~ 30%, i-sulfuric acid 55% ~ 58% kunye namanzi 20% ~ 21%), ubushushu. ukunyuka, ukulungelelanisa ubushushu bungagqithi kwi-50 ℃, qhubeka uvuselela i-1 ~ 2 iiyure ukuphelisa ukusabela, ukuma kwe-6h, ukuhlukana kwe-nitrobenzene eyenziwe, ukuhlamba, ukuhlamba kwe-alkali, njalo njalo. I-Chemicalbook crude nitrotoluene iqulethe i-o-nitrotoluene, i-p-nitrotoluene kunye ne-m-nitrotoluene. I-nitrotoluene ekrwada ihlanjululwe kwi-vacuum, uninzi lwe-o-nitrotoluene yahluliwe, iqhekeza elishiyekileyo eliqulethe i-p-nitrotoluene eninzi lihlulwe yi-vacuum distillation, kwaye i-p-nitrotoluene ifunyenwe ngokupholisa kunye necrystallization, kwaye i-meta-nitrobenzene ifunyenwe. ngokuxutywa kwe-distillation emva kokuqokelelwa kotywala kumama ngexesha lokwahlulwa kwepara.
igubu elenziwe igalvanized 200kg/drum; Ukupakisha ngokweemfuno zomthengi. Ukupholisa kunye nokungenisa umoya, kude nomlilo, umthombo wokushisa, ukuthintela ukukhanya kwelanga, ukuphepha ukukhanya.
