Products Description of Phthalonitrile CAS#91-15-6
Phthalonitrile and other aromatic nitrile compounds are important organic synthesis intermediates with a wide range of applications. They are widely used in the pharmaceutical, pesticide, herbicide, insecticide, dye, fragrance, and natural product industries.
For example, 2,4-dinitro-6-cyanoaniline can be used to produce high-quality bright blue diazo dyes. Lemon nitrile is another example of an internationally developed nitrile fragrance, characterized by a sharp and strong lemon-like aroma.
Phthalonitrile Chemical Properties
| Melting point | 137-139 °C (lit.) |
| Boiling point | 227.54°C (rough estimate) |
| density | 1.24 |
| vapor pressure | <1 Pa (25 °C) |
| refractive index | 1.6231 (estimate) |
| Fp | 162°C |
| storage temp. | Store below +30°C. |
| solubility | benzene: 50 mg/mL, clear |
| form | Crystals or Crystalline Powder |
| color | White to beige |
| PH | 7 (H2O) |
| Water Solubility | 0.56 g/L (25 ºC) |
| BRN | 775028 |
| Exposure limits | ACGIH: TWA 1 mg/m3 |
| Stability: | Stable. Incompatible with strong bases, strong acids, strong oxidizing agents, strong reducing agents. |
| CAS DataBase Reference | 91-15-6(CAS DataBase Reference) |
| NIST Chemistry Reference | Phthalonitrile(91-15-6) |
| EPA Substance Registry System | 1,2-Benzenedicarbonitrile (91-15-6) |
| Hazard Codes | T |
| Risk Statements | 25-23/24/25 |
| Safety Statements | 36/37/39-45-28A |
| RIDADR | UN 3439 6.1/PG 2 |
| WGK Germany | 1 |
| RTECS | TI8575000 |
| Autoignition Temperature | >580 °C |
| TSCA | Yes |
| HazardClass | 6.1 |
| PackingGroup | II |
| HS Code | 29269095 |
| Hazardous Substances Data | 91-15-6(Hazardous Substances Data) |
| Toxicity | LD50 orally in Rabbit: 85 mg/kg |
Product Application of Phthalonitrile CAS#91-15-6
Phthalonitrile is widely used in the synthesis of phthalosulfonamide drugs, phthalocyanine pigments and dyes, high-heat-resistant polyamide fibers, xylene and diisocyanate plastics, as well as desulfurization catalysts.




