First, the chemical structure is a direct application of a variety of experimental determination of the means of modern molecular static and dynamic structure and static and dynamic performance of experimental science. It is from a variety of known chemical structure of the molecular structure and chemical characteristics summarized movement regularity isopropanol market price structure of matter, but also in theory would explain why atoms combined into molecules, atoms, why certain the relationship between the amount of the combined into large number of diverse molecules, and stereochemical features combined with each other in the molecule atomic force various ways and the relative positions of atoms in the molecule. Chemical structure also shows structural features atom of an element or some groups in different chemical environments microscopic valence electron configuration, coordination and other characteristics. The first to propose the concept more precise molecular chemist Avogadro in Italy, he published a molecular theory in 1811, said: "The atom is the smallest particle to participate in chemical reactions, molecules are in a free state or a compound capable of elemental The minimum particle independent existence. molecules are composed of atoms (constitution), the elemental molecule made up of atoms of the same element composition (constitution), the compound molecule made up of atoms of different elements of the composition (composition). In a chemical change, the molecules of different substances in various atom recombination. "Since the concept of molecular Avogadro proposed after a long period of time, the use of isopropyl alcohol, molecular chemist regarded as slightly larger than that of atomic particles. 1920 isopropanol, German chemist Staudinger began to dominate the world of small molecules such views doubt, he is based on: the use of osmotic pressure measured by the molecular weight of the rubber up to about 100,000. He proposed in the paper of macromolecular (polymer) concept, noted that the associated body of natural rubber is not a small molecule, but having a long chain macromolecular covalent bond structure. Polymer also has its own characteristics, such as a small molecule, as a polymer not have the same molecular weight is determined, it is used in the average molecular weight. Xiang dry chemical (Figure), Jinan isopropanol, isopropyl alcohol is provided by Jinan Jinan Chemical Co., Ltd., Cheung dry. Jinan Cheung Dry Chemical Co. (www.xiangqianhuagong.com) (www.dilunyierchun.com) adhere to the "people-oriented" business philosophy, has a professional staff, and strive to provide the best products and services to contribute to the community, and welcome to new and old customers to visit us and sincere cooperation for a better future. Xiang dry chemical - your trusted friend, Company Address: Industrial Road chemical market, Contact: Mr. You can also access (www.dilunyierchun.com/supply_details_38787015.html), for more information about the company.