New Pesticides Emulsifier-Research On Synthesis, Character And Environmental Behavior Of Phosphate Surface Active Agent For Water Suspension Concentrate

The agricultural chemicals emulsifier took one kind of agricultural chemicals synergist, improved the agricultural chemicals biological activity, has brought the huge benefit. It can be said that, the agricultural chemicals emulsifier has the function in the agricultural chemicals production and the application which cannot be substituted. But at present stage our country's agricultural chemicals emulsifier still by cream, Wettability starch and so on, cream, Wettability starch existence serious environment question, Today when the environment question can have obtained more and more many attention, the old dosage-form agricultural chemicals emulsifier are able to be used more and more few, even there have the possibility to be prohibite, the environment solubility security agricultural chemicals will help the medicinal preparation to become the agricultural chemicals dosage-form the main body.The phosphate surface active agent one of water aerosol preparation is big kind of agriculture for medicinal purposes surface active agent which in the recent several dozens years rapidly develops, it is the dependence joins Water aerosol preparation as a kind of surface active agent, it can dissolve in the water agricultural chemicals forms the disperser aerosol in the water suspending liquid preparation; This kind of surface active agent has fine performance and so on emulsibility, dispersivity, wettability, permeability and anti- static electricity, specially compatibility and biodegradation good, but the deflocculant dispersivity and is unfolding the nature also all quite well, aerosol rate high, sticks in the plant body surface ability quite strongly, bears rain wash, thus its drug efficacy remarkable also quite is also lasting. This kind of surface active agent application in the agricultural chemicals realm of production, may enormous enhance the agricultural chemicals in water solubility, but also can form the stable protector on the original medicine contact surface also not have coming off, does not reduce the product the drug efficacy, does not have the chemical damage to the crops, the influence very is also small to the environment, already became the multi-purpose agricultural chemicals to help the medicinal preparation the important composition.The paper take the chloroethanol, the phenol, the phsophorus pentoxide as the raw material, THF as solvent synthesis phosphate surface active agent. This synthesis reaction pair responded the condition requests (heating in water bath lowly 70°C); Responded the equipment is simple (backflow installment, distilling apparatus); The response production rate is high (above 90%); Extremely little has the by-product production; The resultant sole, is easy to process; The reaction pair environment pollution are few.We has determined solubility of BPPE in water under 25°C (4.5g/L), may determine through the solubility that, namely the use saturated phosphate surface active agent watery solution helps the...