Name | p-(2-naphthylamino)phenol |
Synonyms | 4-(2-Naftylamino)fenol 4-(2-Naphthylamino)phenol p-(2-naphthylamino)phenol 4-(2-naphthalenylamino)-pheno 4-(2-naphthalenylamino)-Phenol 4-Hydroxyphenyl-beta-naphthylamine N-(p-Hydroxyphenyl)-2-naphthalenamine N-(4-HYDROXYPHENYL)-2-NAPHTHYLAMINE, 97 4-(naphthalen-2-ylamino)phenol in stock Factory |
CAS | 93-45-8 |
EINECS | 202-248-7 |
InChI | InChI=1/C16H13NO/c18-16-9-7-14(8-10-16)17-15-6-5-12-3-1-2-4-13(12)11-15/h1-11,17-18H |
Molecular Formula | C16H13NO |
Molar Mass | 235.28 |
Density | 1.0711 (rough estimate) |
Melting Point | 139-142°C(lit.) |
Boling Point | 377.68°C (rough estimate) |
Flash Point | 173.1°C |
Vapor Presure | 8.37E-08mmHg at 25°C |
pKa | 10.74±0.26(Predicted) |
Storage Condition | Room Temprature |
Stability | Stable. Incompatible with strong oxidizing agents. |
Refractive Index | 1.6000 (estimate) |
Physical and Chemical Properties | Black powder. Melting point 139-142 ℃. |
Hazard Symbols | Xn - Harmful |
Risk Codes | R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. R36/37/38 - Irritating to eyes, respiratory system and skin. R40 - Limited evidence of a carcinogenic effect |
Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) |
RTECS | SM1750000 |
EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
Application | the dye prepared by this product has excellent color fastness, which is mainly used for dyeing cotton fiber fabrics, especially suitable for chemical fiber cotton blended fabric, can obtain full black color, the nature of the dyed fabric is stable, the storage is not brittle, not easy to change color, and has the characteristics of high temperature steam. Also widely used in cotton, viscose fabric printing. used for dyeing cotton and D/cotton blended fabric |
production method | results from the condensation of 2-naphthol with p-aminophenol. 150kg of 2-naphthol was added to the reaction pot, followed by 75kg of p-aminophenol, and 30kg of 2-naphthol was covered on the surface (to prevent oxidation). Cover, 100 deg C (74.7-77.3kPa) dehydration for 1H. The condensation was carried out at 74.48kPa, and the temperature was raised to 180-190 °c by reaction heat; Then the temperature gradually dropped back to 150-160 °c within 3H. The pressure was reduced to 1.33-2.67kPa. Heating to 190 °c, the 2-naphthol was distilled off until the outlet temperature dropped to 140-150 °c. N-(p-hydroxyphenyl)-2-naphthylamine was obtained by cooling the mixture in a receiver pan with compressed air. |