The average distance between molecules in turn depends on the ambient temperature and pressure, when the temperature, the pressure is the same, the average distance between any gas molecules almost equal (weak action of the gas molecules, can be ignored), so the law holds. The gas law to participate in a chemical reaction, of the formula infer the unknown gas, etc. There are a wide range of applications. Avogadro's Law says: the same pressure at the same temperature, the same volume of gas containing the same number of molecules. 1811 by the Italian chemist Avogadro proposed hypothesis was later recognized scientific community. This law reveals the relationship between the volume of gas reactions, which is part of the description of the gas molecules, the molecular weight of the gaseous substances is measured gas density method provides the basis. For the establishment of atomic and molecular say, also played a positive role. The contact angle is a static method of measuring hydrophobicity, contact angle hysteresis and slip angle is hydrophobic dynamic measurements. Identification of a contact angle hysteresis phenomenon surface heterogeneity. Ethylene glycol butyl ether as the liquid injection pipette to a solid surface, the liquid will form a predetermined contact angle. With the injection of liquid increases glycol ether quote volume droplets will increase the use of ethylene glycol butyl ether, the contact angle becomes large, but the three-phase boundary will remain fixed until the liquid suddenly overflow. In the instant before the contact angle of a liquid spill is called advancing contact angle. Rollback contact angle can suck out the liquid from the droplets measure. As the liquid is sucked out, the volume of the droplet decreases, the contact angle is reduced ethylene glycol butyl ether market prices, but the three-phase boundary is also remain fixed until it is completely sucked back. The liquid is sucked back in the contact angle of the moment is called fallback contact angle. The difference between the advancing contact angle and the contact angle between the fallback is to contact angle hysteresis, which is used to identify heterogeneity, roughness of the surface and movement. There will be a non-homogeneous surface area can obstruct the line of contact. Slide angle is another method of dynamic measurement hydrophobic: placing a liquid dot on a solid surface, the inclined surface of the droplet begins to slide know, when the inclination angle is the angle of slide. Cassie-Baxter state in droplets usually exhibit smaller than the Wenzel state slip angle and contact angle hysteresis. Linyi glycol ether glycol butyl ether _ _ use dry chemical provided by Xiang Xiang dry Chemical Co., Ltd., Jinan. Jinan Cheung Dry Chemical Co. (www.xiangqianhuagong.com) (www.dilunyierchun.com) strong, credible, in Jinan, Shandong alcohol industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Xiang dry chemical into the brilliant and you work for a better future! You can also access (www.dilunyierchun.com/supply_details_38806190.html), for more information about the company.