O-nitrophenol
Mamiriro ezvinhu
Kemikari Zita: O-nitrophenol
Mamwe Mazita: 2-nitrophenol, O-hydroxynitrobenzene
Fomula: C6H5NO3
Uremu hwemorekuru: 139
Nhamba yeCAS: 88-75-5
EINECS: 201-857-5
Nhamba yekutakura yezvinhu zvine njodzi: UN 1663
Zvinotsanangurwa
1. Chitarisiko: Chiedza yellow crystal powder
2. Kunyungudika: 43-47℃
3. Solubility: soluble mu ethanol, ether, benzene, carbon disulfide, caustic soda nemvura inopisa, inonyungudika zvishoma mumvura inotonhora, inonyungudika nemhepo.
Synthesis Method
1.Hydrolysis nzira: o-nitrochlorobenzene is hydrolyzed uye acidified ne sodium hydroxide solution.Wedzera 1850-1950 l ye76-80 g / L sodium hydroxide solution muhari yehydrolysis, wobva wawedzera 250 kg ye fused o-nitrochlorobenzene.Kana ichidziya kusvika ku140-150 ℃ uye kudzvanywa kunenge 0.45MPa, chengeta iyo 2.5h, wozoisimudza ku153-155 ℃ uye kudzvanywa kunenge 0.53mpa, uye kuichengeta kwe3h.Mushure mekuita, yakatonhodzwa kusvika ku60 ℃.Wedzera 1000L mvura uye 60L concentrated sulfuric acid mucrystallizer in advance, wobva wadzvanya muhydrolyzate yataurwa pamusoro, uye zvishoma nezvishoma wowedzera sulfuric acid kusvika Congo red test paper yachinja pepe, wobva wawedzera ice kuti itonhorere kusvika pa30 ℃, kurunga, sefa, uye zunza. kubvisa doro raamai ne centrifuge kuwana 210kg o-nitrophenol ine chikamu chingaita 90%.Goho rinenge 90%.Imwe nzira yekugadzirira ndeye nitration ye phenol mumusanganiswa we o-nitrophenol uye p-nitrophenol, uyezve distillation ye o-nitrophenol nemhepo yemvura.Iyo nitrification yakaitwa pa15-23 ℃ uye tembiricha yepamusoro haifanire kudarika 25 ℃.
2.Phenol nitration.Phenol inonaiwa ne nitric acid kuita musanganiswa we o-nitrophenol uye p-nitrophenol, yozopatsanurwa nefodya distillation.
Application
Inogona kushandiswa seyepakati peiyo organic synthesis yakadai semushonga, dhayi, rubber mubatsiri uye photosensitive zvinhu.Inogona zvakare kushandiswa se monochromatic pH chiratidzo.
Kuchengeta nzira
Chitoro chakavharwa mune inotonhorera uye ine mhepo yekuchengetera mhepo.Ramba kure nemoto nekupisa.Inofanira kuchengetwa zvakasiyana kubva kune oxidant, reductant, alkali uye makemikari anodyika, uye kuchengetedzwa kwakasanganiswa kunofanira kudziviswa.Kuputika kwechiedza chekuvhenekera uye zvivakwa zvemhepo zvinogamuchirwa.Zvinorambidzwa kushandisa michina michina uye maturusi ari nyore kugadzira sparks.Nzvimbo yekuchengetera inofanirwa kunge yakashongedzerwa nezvinhu zvakakodzera kuti ive neinobuda, kure nenzvimbo yekupisa, spark uye murazvo unopfuta uye nzvimbo dzinoputika.
Attention
Kushanda kwakavharwa kuti kupe mhepo yakakwana yemuno.Vashandi vanofanira kunge vakanyatsodzidziswa uye kunyatsotevedzera maitiro ekushanda.Zvinokurudzirwa kuti vashandi vanofanira kupfeka self-priming filter type dust mask, makemikari ekuchengetedza magirazi, anti chepfu yekupinda mbatya dzebasa uye magurovhosi erabha.Ramba kure nemoto nekupisa.Hapana kuputa kumabasa.Shandisa kuputika-proof ventilation system uye midziyo.Dzivisa guruva.Dzivisa kusangana neoxidant, inoderedza agent uye alkali.Pakutakura, inofanira kutakurwa uye kuburutswa zvishoma kuti pasuru nemudziyo zvisakanganiswa.Midziyo yekudzimisa moto yemhando dzinoenderana uye huwandu uye kubuda kwemidziyo yekurapa emergency ichapihwa.Mudziyo usina chinhu unogona kunge uine zvinhu zvinokuvadza.
