m-Phthalodinitrile
- 1,3-Benzenedicarbonitrile
- 1,3-Dicyanobenzene
- m-Dicyanobenzene
- Isophthalodinitrile
- Benzene-1,3-dicarbonitrile
m-Phthalodinitrile | |
| |
| Formula | C8H4N2 |
| Structure | |
| Description | Needles from alcohol. Almond-like odor. |
| Uses | Chemical intermediate for amines like m-xylenediamine. |
| Registry Numbers and Inventories. | |
| CAS | 626-17-5 |
| EC (EINECS/ELINCS) | 210-933-7 |
| EC Risk Phrase | R 22 |
| EC Safety Phrase | S 22 36/37 |
| RTECS | CZ1900000 |
| RTECS class | Drug; Primary Irritant |
| UN (DOT) | 2811 |
| Beilstein/Gmelin | 1072209 |
| Beilstein Reference | 4-09-00-03297 |
| Swiss Giftliste 1 | G-5368 |
| Canada DSL/NDSL | NDSL |
| US TSCA | Listed |
| Austrailia AICS | Listed |
| New Zealand | Listed |
| Japan ENCS (MITI) | Listed |
| Korea ECL | Listed |
| Properties. | |
| Formula | C8H4N2 |
| Formula mass | 128.13 |
| Melting point, °C | 158 - 160 |
| Boiling point, °C | 288 |
| Vapor pressure, mmHg | 0.04 (25 C) |
| Critical temperature | 526 |
| Critical pressure | 33.4 |
| Density | 4.42 g/cm3 (20 C) |
| Solubility in water | Slightly soluble |
| Partition coefficient, pKow | 0.99 |
| Heat of vaporization | 47.9 kJ/mol |
| Heat of combustion | -2730 kJ/mol |
| Hazards and Protection. | |
| Storage | Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. |
| Handling | Wash thoroughly after handling. Use with adequate ventilation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation. |
| 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 | Clean up spills immediately, using the appropriate protective equipment. Sweep up, then place into a suitable container for disposal. Avoid generating dusty conditions. Provide ventilation. |
| Stability | Stable under normal temperatures and pressures. |
| Incompatibilities | Oxidizing agents. |
| Decomposition | Nitrogen oxides, carbon monoxide, irritating and toxic fumes and gases, carbon dioxide, nitrogen. |
| Fire. | ||||
| Flash Point,°C | 106 | |||
| Fire fighting | Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Extinguishing media: Use agent most appropriate to extinguish fire. In case of fire use water spray, dry chemical, carbon dioxide, or appropriate foam. | |||
| Fire potential | Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes. | |||
| Hazards | Contact with metals may evolve flammable hydrogen gas. | |||
| Combustion products | Fire may produce irritating, corrosive and/or toxic gases. | |||
| NFPA | Health | 1 | ||
| Flammability | 0 | |||
| Reactivity | 0 | |||
| Health. | |
| Exposure limit(s) | NIOSH REL: TWA 5 mg/m3 |
| Poison_Class | 5 |
| Exposure effects | |
| Ingestion | May cause irritation of the digestive tract. The toxicological properties of this substance have not been fully investigated. |
| Inhalation | May cause respiratory tract irritation. The toxicological properties of this substance have not been fully investigated. |
| Skin | May cause skin irritation. The toxicological properties of this material have not been fully investigated. |
| Eyes | May cause eye irritation. The toxicological properties of this material have not been fully investigated. |
First aid |
|
| Ingestion | Never give anything by mouth to an unconscious person. Get medical aid. 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. |
| 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 | |
| HS Code | 2926 90 20 | |