93-05-0
N,N-Diethyl-1,4-phenylenediamine;N,N-Diethyl-p-phenylenediamine
CAS: 93-05-0
Molecular Formula: C10H16N2
93-05-0 - Names and Identifiers
93-05-0 - Physico-chemical Properties
| Molecular Formula | C10H16N2 |
| Molar Mass | 164.25 |
| Density | 0.988g/mLat 25°C(lit.) |
| Melting Point | 19-21°C(lit.) |
| Boling Point | 115-116°C5mm Hg(lit.) |
| Flash Point | >230°F |
| Solubility | water: insoluble |
| Vapor Presure | 0.00108mmHg at 25°C |
| Appearance | Liquid or Low Melting Solid |
| Color | Clear yellow-brown to dark brown |
| BRN | 879361 |
| pKa | 8.21±0.32(Predicted) |
| Storage Condition | Keep in dark place,Sealed in dry,2-8°C |
| Stability | Stability Air and light sensitive. Incompatible with strong oxidizing agents, strong acids. |
| Refractive Index | n20/D 1.571(lit.) |
| Physical and Chemical Properties | Light yellow liquid. Melting point 23 °c, boiling point 260-262 °c, 115-116 °c (0.67kPa). The relative density was 0.988. Can be mixed with alcohol, ether, insoluble in water. Discoloration when exposed to light or air. |
93-05-0 - Risk and Safety
| Hazard Symbols | T - Toxic |
| Risk Codes | R25 - Toxic if swallowed R34 - Causes burns |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) |
| UN IDs | UN 2922 8/PG 2 |
| WGK Germany | 1 |
| RTECS | SS9275000 |
| HS Code | 29215190 |
| Hazard Class | 6.1(b) |
| Packing Group | III |
93-05-0 - Reference Information
| NIST chemical information | Information provided by: webbook.nist.gov (external link) |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| use | dye intermediate. As a color phase developer. Used as a pharmaceutical intermediate Biochemical research |
| production method | N,N-diethylaniline is used as raw material and obtained by nitrosation, reduction and neutralization: the technological process is as follows:(1) nitrosation is added with 150kg of water, 35kg N,N-diethylaniline and 72kg of hydrochloric acid in the kettle, and cooled to 0 ℃. At 0-5 ℃, 50% sodium nitrite solution (prepared at 18.5kg 100%) was added. Add, stir for half an hour, add 6kg of salt. Stir for 2h. Filtered p-nitroso-N,N-diethylaniline. (2) Reduction and neutralization Add 150kg of water and 11kg of hydrochloric acid into the kettle. Stir, add 41kg of iron powder, cool to 15 ℃, and add nitrite at 20-25 ℃. After adding, add 5kg of iron powder and stir at 20-25 ℃ for 3 hours. Add 7kg of sodium carbonate, stir for 15min, and filter. The filter cake is washed with hot water. Add 50kg of liquid alkali (30%) and 15kg of salt to the filtrate and lotion, and let them stand for stratification. The upper material distillation kettle, at 120-150 ℃ and vacuum of 8kPa vacuum distillation to collect fractions, to obtain p-amino-N,N-diethylaniline. |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-10 22:29:15
