Divided into: ① molecular orbital method (referred to as MO method shelf isobutanol, see molecular orbital theory); ② valence bond method (referred to as VB method isobutanol uses, see valence bond theory). The following describes only the molecular orbital method, which is the promotion of atomic orbitals molecular isobutanol, namely in the physical model, assuming that each electron in the molecule average potential field generated by all the nuclei and electrons in motion isobutanol price quotes that each may be a single electron electronic function (function electronic coordinates) to indicate its state of motion, and said function of the one-electron molecular orbital, and the state of motion of the whole molecule by molecular orbital electrons of all molecular composition (linear combination product), which is the origin of the molecular orbital method name. . Is one of the important basic amount of photochemistry. The reaction was set A hv → B, the quantum yield of the primary process is defined as: A molecule in the excited state if B becomes also occur in parallel with other photophysical and photochemical processes, then the quantum yield of the primary process will be competing in the parallel process of "quantum yield" effect. Since under normal conditions of light intensity, per molecule can only absorb a photon, so the sum of the quantum yield of the primary process shall all equal to 1. Determination of the absolute quantum efficiency have assay relative assay. Refers to the relative method with one of its absolute amount of yield compared to the known systems approach. Absolute laws require to establish direct reaction quantum yield and wavelength, temperature, light intensity, and various ions (particularly hydrogen ion) as a function of concentration between. Now we have studied such systems have gas system (such as nitrous oxide, carbon dioxide, hydrogen bromide, acetone, etc.); liquid systems (such as oxalic acid iron (Ⅲ) solution of potassium oxalate solution of uranyl, benzophenone - two benzyl alcohol, 2-hexanone, azobenzene, benzoic acid, etc.]; solid phase system (e.g. nitrobenzaldehyde, benzophenone - benzhydrol, etc.) used in these methods are collectively referred to as chemical instrument actinometer isobutoxy. alcohol use, Chengde isobutanol, Xiang Xiang dry dry chemical provided by the Jinan Chemical Co., Ltd., Jinan Cheung Dry Chemical (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! can also be accessed (www.dilunyierchun.com/supply_details_44370795 .html), for more information about the company.