Molecular Formula | C4H7Cl2O4P.2C3H4Cl2O4P.Ca |
Molar Mass | 672.935 |
Physical and Chemical Properties | Chemical properties white or yellowish waxy solid. Melting point 64-67 ℃. Easily soluble in water, ethanol and ether. This product is a stereocoordination complex of O-methyl-O(2, 2-dichlorovinyl) calcium phosphate and O,O dimethyl-O-(2, 2-dichlorovinyl) phosphate. |
Use | The use of calcium bezoar has fumigation and contact killing effect, can effectively control crops and household health pests, the effect of prevention and control of cockroaches is particularly prominent. |
production method
It is derived from dichlorvos and calcium chloride through salt and complexation. The product is often processed as 40% emulsifiable concentrate and 65% wettable powder. Raw material consumption quota: dichlorvos 1000kg/t, calcium chloride 24kg/t, toluene 10kg/t.
category
Pesticides
toxicity classification
High toxicity
acute toxicity
oral-rat LD50: 156 mg/kg; oral-mouse LD50: 250 mg/kg
flammability hazard characteristics
Combustion produces toxic chloride and phosphorus oxide gas
storage and transportation features
The warehouse is ventilated and dry at low temperature; stored and transported separately from food raw materials
fire extinguishing agent
Dry powder, foam, sand