Molecular Formula | C6H10N2 |
Molar Mass | 110.157 |
Density | 1g/cm3 |
Melting Point | 47-54℃ |
Boling Point | 276°C at 760 mmHg |
Flash Point | 137.8°C |
Water Solubility | 210 g/L (20℃) |
Vapor Presure | 0.00827mmHg at 25°C |
Refractive Index | 1.514 |
Physical and Chemical Properties | density 0.975 melting point 47-54°C boiling point 292-295°C refractive index 1.499-1.503 flash point 155°C water-soluble 210g/L (20°C) |
Use | Used as curing agent for epoxy resin |
Hazard Symbols | Xn - Harmful |
Risk Codes | R22 - Harmful if swallowed R41 - Risk of serious damage to eyes |
Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S39 - Wear eye / face protection. |
light yellow crystals. Melting point 45 °c. Boiling point 292~295 deg C. The relative density was 0.975. Refractive index 4995. Flash point 137 °c. Soluble in water, ethanol, ether-soluble. Hygroscopic.
1,2 propylene diamine as raw material, under the catalysis of sulfur condensation with propionitrile, the first step reaction at 90 deg C for 4 hours, in the second step, the reaction was heated to 140 °c for 1H. After completion of the reaction, the temperature was lowered to below 90 °c. Zinc was added to remove sulfur, and the reaction th was stirred at 140 ° C., cooled to room temperature, separated, and distilled under reduced pressure to collect a fraction at 102 to 112 ° C. (1. 99kPa). Under the catalysis of active nickel, dehydrogenation was carried out at 180 ℃, and finally the fraction of 150~160 ℃(1. 33kPa) was collected by vacuum distillation.
as a curing agent, it is used to prepare epoxy adhesive, epoxy silicone resin and coating.
The toxicity is similar to that of 2 methylimidazole, which has sensitization to skin [see 2 methylimidazole (D 013)]. The operator should wear protective gear. Lined with plastic bags, external use of iron drum or barrel packaging. Store in a cool, ventilated, dry place. Protection against heat, sun and moisture. According to the provisions of the storage and transportation of toxic chemicals.