Summer to pesticides when aerosol brake frequently used pesticides brake is at room temperature, the gas ______ ______ way through after loading the bottle. After using insecticide spraying for a moment, hands will feel the cool metal cans containing pesticides, and this is because the bottle of insecticide happen to be endothermic ______. This is the principle of aerosol insecticide; commentary. (1) There are two gas liquefaction method: compression volume, reducing the temperature; liquid insecticide in canister, the gas at the time of filling is a method by compressing the volume of liquefied into a liquid stored in the metal tank; ( 2) when the button is pressed after the nozzle certain agents, metal cans will feel cool, this is because after the discharge good pharmaceutical aerosol insecticide image, rapid vaporization tank liquid medicament gaseous, endothermic and vaporization of the metal tank temperature is reduced, it will be cool. So the answer is: the compressed volume; liquefaction; vaporization. Use to use, we are Chinese brands Hebei aerosol insecticide manufacturers, easy home easy home net net: Product easy home net aerosol insecticides for my company specializing in, aerosol insecticide aerosol insecticides , mosquito, fly fragrant, long incense, electric mosquito liquid investment odorless aerosol insecticides, etc., using high quality pure odorless kerosene as a solvent, without adding any flavor and other solutes, imported no natural products. Odorless natural, kill, Yingzi, mosquitoes, flies, etc., lasting, and no pungent odor. 1, odorless natural, clean kerosene as a solvent. Using high-tech formula, non-polluting, without leaving traces after spraying, tasteless without stimulation. Jasmine flavor, there is a good variety of flavor. . 3. This product is a potent formula. Product properties Performance and advantages: the ability to quickly kill mosquitoes, Yingzi, insects, etc., no pollution, no odor, leaving no trace after spraying, the temperature fragrance. Easy home net is your best choice. Aerosol insecticide manufacturers | aerosol insecticides | Hongfa chemical provided by Acer Fine Chemical Co., Liaocheng. Liaocheng Acer Fine Chemical Co., Ltd. (www.lchfhg.com) strong, credible, Shandong Liaocheng insecticide Miehai industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Acer fine chemicals and you hand in hand into the brilliant, for a better future!