Molecular Formula | C2H5Cl2OPS |
Molar Mass | 179.01 |
Density | 1.353g/mLat 25°C(lit.) |
Boling Point | 55-68°C10mm Hg(lit.) |
Flash Point | >230°F |
Vapor Presure | 10 mm Hg ( 55 °C) |
Refractive Index | n20/D 1.504(lit.) |
Physical and Chemical Properties | This product is a colorless liquid, B. P. 80~88 ℃/88kPa., soluble in toluene and other solvents. |
Hazard Symbols | T - Toxic |
Risk Codes | R23/24/25 - Toxic by inhalation, in contact with skin and if swallowed. R34 - Causes burns R23/24 - R22 - Harmful if swallowed |
Safety Description | S22 - Do not breathe dust. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) |
UN IDs | UN 3390 6.1/PG 1 |
WGK Germany | 3 |
RTECS | TD4400000 |
Hazard Class | 6.1(a) |
Packing Group | II |
EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
Use | O-ethylthiophosphoroyl dichloride is abbreviated as ethyl dichloride, used to synthesize the organophosphorus insecticide isopropylamine phosphorus (ethyl isosphos) and the herbicides amphos, oxphos phosphorus. |
production method | the preparation method is to meter fresh thiofphos trichloride into a reaction kettle, cool to -2 ℃, slowly add anhydrous ethanol dropwise, control the reaction temperature (0±2)℃, take negative pressure in the reaction, remove the generated hydrogen chloride, move to a distillation kettle after the reaction, evaporate the former fraction first, and continue to distill the product. |