4-nitrotoluene; p-nitrotoluene
ʻIke kumu:
inoa Pelekane：4-Nitrotoluene；
Helu CAS: 99-99-0
Huina molekala: C7H7NO2
Kaumaha molekula: 137.14
Helu EINECS: 202-808-0
Kumu hoʻolālā:
Nā ʻāpana pili: ʻO nā mea kino kino; Nā pūhui Nitro; Pesticide waena.
Ka helu hehee: 52-54 °C (kukui)
Puni hoʻolapalapa: 238 °C (kukui.)
Māmā: 1.392 g/mL ma 25 °C (māmā)
Hōʻike hoʻohālikelike: n20/D 1.5382
Kekahi uila: 223 °F
Solubility: hiki ʻole ke hoʻoheheʻe ʻia i ka wai, hiki ke hoʻoheheʻe ʻia i ka ethanol, etera a me benzene.
Pono: ʻO ke aniani hexagonal rhombic melemele māmā.
Pumi mahu: 5 mm Hg (85 °C)
| Shoʻopaʻapaʻa | Unit | Standard |
| Ka nana aku | Paʻa melemele | |
| Mea nui | % | ≥99.0% |
| Māmā | % | ≤0.1 |
He mea koʻikoʻi koʻikoʻi ia, hoʻohana nui ʻia ma ke ʻano he waena o ka pesticide, dye, lāʻau lapaʻau, plastic a me nā mea kōkua fiber synthetic. E like me ka herbicide chloromyron, etc., hiki ke hana i ka p-toluidine, p-nitrobenzoic acid, p-nitrotoluene sulfonic acid, 2-chloro-4-nitrotoluene, 2-nitro-4-methylaniline, dinitrotoluene a pēlā aku.
ʻO ke ʻano o ka hoʻomākaukau ʻana e hoʻohui i ka toluene i ka reactor nitrification, e hoʻomaha iā ia ma lalo o 25 ℃, e hoʻohui i ka waikawa i hui ʻia (ka waikawa nitric 25% ~ 30%, sulfuric acid 55% ~ 58% a me ka wai 20% ~ 21%), ka mahana. piʻi, hoʻoponopono i ka mahana ʻaʻole iʻoi aku ma mua o 50 ℃, e hoʻomau i ka hoʻoulu ʻana no 1 ~ 2 mau hola e hoʻopau i ka hopena, kū no 6h, ka hoʻokaʻawale ʻana o ka nitrobenzene, holoi, holoi alkali, a pēlā aku. Loaʻa i ka nitrotoluene crude puke kemika he o-nitrotoluene, p-nitrotoluene a me m-nitrotoluene. Hoʻokaʻawale ʻia ka nitrotoluene crude i loko o ka ʻōpala, ua hoʻokaʻawale ʻia ka hapa nui o ka o-nitrotoluene, ua hoʻokaʻawale ʻia ka hakina koena i loaʻa i ka p-nitrotoluene e ka distillation, a ua loaʻa ka p-nitrotoluene ma ka hoʻoilo a me ka crystallization, a loaʻa ka meta-nitrobenzene. ma ka distillation ma hope o ka hōʻiliʻili ʻana i ka waiʻona makuahine i ka wā e kaʻawale ai ka para.
pahu galvanized 200kg / pahu; Hoʻopili e like me nā koi o ka mea kūʻai aku. ʻO ka ʻoluʻolu a me ka ventilated, mamao mai ke ahi, kumu wela, pale pololei i ka lā, pale i ka mālamalama.
