Molecular Formula | C8H12N2 |
Molar Mass | 136.19 |
Melting Point | 210-211 °C |
Boling Point | 219.4°C at 760 mmHg |
Flash Point | 98°C |
Vapor Presure | 0.12mmHg at 25°C |
Storage Condition | Inert atmosphere,Room Temperature |
Physical and Chemical Properties | This product is white crystalline substance, soluble in water. |
Hazard Class | IRRITANT |
use | 2,6-dimethylphenylhydrazine is an intermediate of the fungicide evil cream. |
production method | its preparation method is to put water and HCl into a reactor, cool, then add metered 2, 6-dimethylaniline, cool to below -5 ℃, start dropping NaNO2 aqueous solution, control dropping temperature, measure pH<3 at the dropping end point, and then continue the reaction for 10min, add anhydrous Na2SO3, stir evenly, slowly raise the temperature to (95±2)℃ for 2.5h, cool to room temperature, add HCl, raise the temperature to 70 ℃, then cool and filter to obtain 2,6-dimethylphenylhydrazine hydrochloride. |