O-Amino-p-Chlorophenol
Chemical Structure
Khoom npe: o-amino-p-chlorophenol
Lwm lub npe: 4-chloro-2-aminophenol;p-chloro-o-aminophenol;o-amino-p-chlorophenol;4 CAP;5-chloro-2-hydroxyaniline;2-hydroxy-5-chloroaniline
Cov mis mos molecular: C6H6ClNO
Qhov hnyav: 143.57
Numbering System
CAS Nr .: 95-85-2
EINECS No.: 202-458-9
Cov ntaub ntawv lub cev
Cov tsos mob: dawb los yog tawm-dawb crystalline hmoov.
Purity: ≥98.0%
Melting point: 140～142℃
Solubility: insoluble hauv dej, solubility hauv dej ntawm 20°C <0.1 g / 100 mL, soluble hauv ether, ethanol thiab chloroform.
Stability: ruaj khov thaum qhuav, yooj yim rau oxidized thiab xim nyob rau hauv cov huab cua ntub, flammable nyob rau hauv cov ntaub ntawv ntawm qhib nplaim;Thaum tshav kub kub tso cov tshuaj chloride thiab nitrogen oxide gases.
Txoj kev tsim khoom
Siv los ua cov xim nruab nrab, thiab tseem siv rau hauv kev npaj cov fluorescent whitening agent dye intermediates, thiab siv hauv kev tsim cov fluorescent whitening agent DT.
Txoj kev tsim khoom
Siv p-chlorophenol ua raw khoom, 2-nitro-p-chlorophenol tuaj yeem ua los ntawm nitration, thiab tom qab ntawd txo qis los ua p-chloro-o-aminophenol.
(1) Kev tsim cov 2-nitro-p-chlorophenol: Siv p-chlorophenol ua raw khoom, nitrification nrog nitric acid.Ntxiv cov distilled p-chlorophenol maj mam mus rau hauv lub tank stirred nrog 30% nitric acid, ua kom kub ntawm 25-30.℃, do li 2 teev, ntxiv dej khov kom txias kom qis dua 20℃, precipitate, lim, thiab ntxuav lub ncuav mog qab zib lim rau Congo Liab, cov khoom 2-nitrop-chlorophenol tau txais.
(2) Muaj ob txoj hauv kev rau kev txo qis ntawm 2-nitro-p-chlorophenol.Ib qho yog txo nrog sodium disulfide.Ua ntej, 30% sodium hydroxide tov thiab sulfur hmoov yog siv los ua sodium disulfide tov, thiab 2-nitro-p-phenol yog ntxiv nyob rau hauv kev faib ua feem rau react ntawm 95-100.°C, thiab cov tshuaj tiv thaiv dhau lawm.Tom qab kub pom, lub filtrate yog neutralized nrog baking soda dej, txias rau 20.°C, lim, thiab lim ncuav mog qab zib yog ntxuav kom nruab nrab kom tau txais cov khoom tiav 2-nitro-p-chlorophenol.
Qhov thib ob yog txoj kev txo hydrogenation.Nyob rau hauv lub xub ntiag ntawm ib tug npib tsib xee catalyst, lub aqueous ncua kev kawm ntawv ntawm 2-nitro-p-chlorophenol yog kho rau pH = 7 nrog sodium dihydrogen phosphate hydrate thiab sodium hydroxide aqueous tov ntawm hydrogen siab ntawm 4.05Mpa thiab Hydrogenation txo ntawm 60°C. Tom qab cov tshuaj tiv thaiv tiav, tso lub siab, hloov nrog nitrogen, cua sov rau 95°C, kho pH = 10.7 nrog sodium hydroxide, ntxiv cov pa roj carbon activated thiab diatomaceous lub ntiaj teb, do zoo, thiab lim.Cov lim tau raug kho rau pH = 5.2 (20°C) nrog concentrated hydrochloric acid, txias rau 0°C, lim, qhuav, thiab kho nrog sodium bisulfite.Rov ua haujlwm plaub zaug, tom qab ntawd distilled ntawm 2.67kpa, sau cov feem ntawm 80°C, thiab qhuav lawv kom tau txais cov khoom lag luam nrog cov txiaj ntsig ntawm 97.7%.
Daim Ntawv Thov Tseem Ceeb
Kev siv lub ntsiab ntawm p-chloro-o-aminophenol yog ib qho xim nruab nrab, rau kev npaj cov kua qaub mordant RH, acid complex violet 5RN thiab reactive dyes, thiab lwm yam, thiab kuj rau kev npaj ntawm raw khoom chlorzoxazone.
Ntim, Cia thiab thauj
Nws yog cov tshuaj txaus ntshai, thiab tau ntim rau hauv 25kg hlau nruas, thiab lub tsev khaws khoom yog qhov cua, qhov kub thiab txias thiab qhuav, thiab tiv thaiv los ntawm tshav ntuj ncaj qha.Khaws kom deb ntawm hluav taws kub qhov chaw, thiab khaws cia thiab thauj cais ntawm cov kua qaub, oxidants, khoom noj khoom haus additives, thiab oxidants.
