Diphenylamine
- N-phenylbenzeneamine
- Anilinobenzene
- N,N-Diphenylamine
Diphenylamine | |
| |
| Formula | (C6H5)2NH |
| Structure | |
| Description | Very pale tan-amber to brown crystalline solid, discolors in light, pleasant floral odor. |
| Uses | Manufacture of dyes, stabilizing nitrocellulose explosives & celluloid, in analytical chemistry for detection of nitrates, chlorates and other oxidizing substances with which, in presence of sulfuric acid, it gives a deep-blue color, fungicide. |
| Registry Numbers and Inventories. | |
| CAS | 122-39-4 |
| EC (EINECS/ELINCS) | 204-539-4 |
| EC Index Number | 612-026-00-5 |
| EC Class | Toxic; Danger of cumulative effects; Dangerous for the Environment |
| EC Risk Phrase | R 23/24/25 33 50/53 |
| EC Safety Phrase | S 28 36/37 45 60 61 |
| RTECS | JJ7800000 |
| RTECS class | Agricultural Chemical and Pesticide; Mutagen; Reproductive Effector |
| UN (DOT) | 2811 |
| Merck | 13,3349 |
| Beilstein/Gmelin | 508755 |
| Beilstein Reference | 4-12-00-00271 |
| RCRA | K083; K104 |
| EPA OPP | 38501 |
| Swiss Giftliste 1 | G-51496 |
| Canada DSL/NDSL | DSL |
| US TSCA | Listed |
| Austrailia AICS | Listed |
| New Zealand | Listed |
| Japan ENCS (MITI) | Listed |
| Korea ECL | Listed |
| Properties. | |
| Formula | C12H11N |
| Formula mass | 169.23 |
| Melting point, °C | 53 - 54 |
| Boiling point, °C | 302 |
| Vapor pressure, mmHg | 0.00021 (20 C) |
| Vapor density (air=1) | 5.82 |
| Critical temperature | 658 |
| Critical pressure | 80.3 |
| Density | 1.165 g/cm3 (20 C) |
| Solubility in water | Insoluble |
| Viscosity | 6.1 cp (50 C) |
| Surface tension | 39.2 g/s2 (60 C) |
| Refractive index | 1.6189 (64 C) |
| pKa/pKb | 12.22 (pKb) |
| Partition coefficient, pKow | 3.17 |
| Heat of fusion | 17.8 kJ/mol |
| Heat of vaporization | 69.9 kJ/mol |
| Heat of combustion | -6436 kJ/mol |
| Hazards and Protection. | |
| Storage | Keep away from sources of ignition. Do not store in direct sunlight. Store in a tightly closed container. Keep from contact with oxidizing materials. Store in a cool, dry, well-ventilated area away from incompatible substances. Store protected from light. |
| WHMIS | D1B |
| Handling | Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Avoid contact with eyes, skin, and clothing. Do not ingest or inhale. Store protected from light. |
| Protection | Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure. |
| Respirators | Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary. |
| Small spills/leaks | Vacuum or sweep up material and place into a suitable disposal container. Clean up spills immediately, using the appropriate protective equipment. Avoid generating dusty conditions. Provide ventilation. |
| Disposal code | 9 |
| Stability | Stable under normal shipping and handling conditions. |
| Incompatibilities | Oxidizing agents, strong acids, isocyanates, hexachloromelamine, organic anhydrides, aldehydes, trichloromelamine. |
| Decomposition | Nitrogen oxides, carbon monoxide, carbon dioxide. |
| Fire. | ||||
| Flash Point,°C | 153 | |||
| Autoignition, °C | 630 | |||
| Upper exp. limit, % | 5.4 | |||
| Lower exp. limit, % | 0.7 | |||
| Fire fighting | Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. This material in sufficient quantity and reduced particle size is capable of creating a dust explosion. Extinguishing media: Water or foam may cause frothing. In case of fire, use carbon dioxide, dry chemical powder or appropriate foam. | |||
| Fire potential | Nonflammable. | |||
| Hazards | Contact with metals may evolve flammable hydrogen gas. | |||
| Combustion products | Toxic oxides of nitrogen may form in fire. | |||
| NFPA | Health | 2 | ||
| Flammability | 1 | |||
| Reactivity | 0 | |||
| Health. | |
| Exposure limit(s) | TLV (as TWA): ppm; 10 mg/m3 (ACGIH 1995-1996). NIOSH REL: TWA 10 mg/m3 |
| Poison_Class | 3 |
| Exposure effects | Prolonged or repeated skin contact may cause dermatitis. May cause reproductive and fetal effects. There is a danger of cumulative effects. |
| Ingestion | May cause irritation of the digestive tract. May cause effects similar to those of acute inhalation. |
| Inhalation | Inhalation of vapor may cause respiratory tract irritation. May cause methemoglobinemia, cyanosis, convulsions, tachycardia, dyspnea, and death. May cause adverse central nervous system effects including headache, convulsions, and possible death. May cause bladder injury and hypertension. |
| Skin | Causes skin irritation. May cause skin sensitization, an allergic reaction, which becomes evident upon re-exposure to this material. |
| Eyes | Causes eye irritation. |
First aid |
|
| Ingestion | Never give anything by mouth to an unconscious person. Get medical aid immediately. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water. |
| Inhalation | Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid. |
| Skin | Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse. Destroy contaminated shoes. |
| Eyes | Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid. |
| Transport. | ||
| UN number | 2811 |  |
| Response guide | 154 | |
| Hazard class | 6.1 | |
| Packing Group | I; II; III | |
| USCG CHRIS Code | DAM | |
| USCG Compatatibility Group | 9 Aromatic amines | |
| HS Code | 2921 44 00 | |
| IMO Pollution Category | B | |
| IMO Hazard code | P | |