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English alias | C.I. 76520 |
C.I. Oxidation Base 17 | |
2-Amino-1-hydroxybenzene | |
2-Hydroxyaniline | |
ortho amino phenol | |
o-Hydroxyaniline | |
O-Aminophenol | |
O-AMINO PHENOL | |
O-AMINOPHENOL | |
2-Amino Phenol | |
CAS | 95-55-6 |
EINECS | 202-431-1 |
chemical formula | C6H7NO |
molecular weight | 109.13 |
inchi | InChI=1/C6H7NO/c7-5-3-1-2-4-6(5)8/h1-4,8H,7H2 |
density | 1.328 |
melting point | 172-177℃ |
boiling point | 164℃ (11 mmHg) |
flash point | 168 ℃ |
Water solubility | 17 g/L (20℃) |
Dangerous goods sign | Xn - hazardous substances |
Risk terminology | R20 / 22 - harmful by inhalation and if swallowed. |
R68 - risk of irreversible consequences. | |
Safety terminology | S36 / 37 - wear appropriate protective clothing and gloves. |
Dangerous goods transportation number | UN 2512 |
Downstream products | Oxazolin fluorescent brightener KCB |
The pure product is white acicular crystal, which gradually turns black in light and air. Can sublimate. Density 1 328g/cm3。 Melting point 174 ℃. Insoluble in benzene, soluble in ethanol and water. In case of ferric chloride, it is red and forms water-soluble salt with inorganic acid.
O-nitrochlorobenzene is heated and heated in sodium hydroxide solution, hydrolyzed under a certain pressure to obtain sodium o-nitrophenol, then reduced with alkali sulfide, acidified with carbon dioxide, cooled and filtered, immersed in sodium bisulfite solution, centrifuged and dried to obtain the finished product.
Dye intermediate, used for manufacturing sulfide dyes, azo dyes, fur dyes and fluorescent brightener E.
Toxic. It has the toxicity of aniline and phenol. It can be absorbed through the skin and cause toxic dermatitis, methemoglobin and asthma. The production equipment shall be sealed, the site shall be well ventilated, and the operators shall wear protective equipment.
Manufacturing
