Effect of molecular spectroscopy is the main way to provide internal information molecules, molecular spectra based on the moment of inertia of the molecule can be determined, the molecular bond lengths and bond strength as well as many of the properties of molecular dissociation energy, etc., whereby the molecular structure can be presumed. Internal molecular motion state changes generated by the absorption or emission spectrum (from ultraviolet to far infrared until microwave spectrum). Molecular motion, including rotation of the whole molecule, the molecule in the equilibrium position of the atoms and molecules vibrating motion GB butyl acetate, electronic, therefore, are generally three types of molecular spectroscopy: rotational spectra, vibrational spectroscopy and electron spectroscopy. Molecular electronic transitions at different energy levels to generate the electronic spectrum. Because they are in the ultraviolet and visible region, also known as UV-visible spectroscopy. Electronic transitions often accompanied by a smaller energy vibrational transitions, so it is band spectrum. Unlike the same electron energy state vibration level corresponding to the transition vibration spectrum, this part of the spectrum in the infrared region and called IR. With the rotational energy levels of vibration transitions, so this part of the spectrum there are more dense spectral lines, it is also known rovibrational spectrum. By purely rotational molecular transitions between energy levels produced spectrum called rotational spectrum. This longer wavelength part of the spectrum is generally located in the far-infrared region and the microwave region and called far-infrared spectroscopy or microwave spectrum. Bunsen have a good friend is a physicist, called Kirchhoff. They were often walking together to discuss scientific issues. One day, the Bunsen flame experiments the difficulties encountered by Kirchhoff told him to listen. The physicists Fraunhofer experiments on solar spectrum understand very clearly, even in his lab also preserved Fraunhofer hand polished quartz prism. Bunsen Kirchhoff problem listening butyl acetate manufacturers, remembered Fraunhofer lab, and then he told Bunsen made a good suggestion, do not observe the combustion flame color, but it should be observed spectrum. They were more excited to talk more, and finally decided to cooperate to carry out an experiment. GB butyl acetate, butyl acetate, Liaocheng, Xiang dry chemical (View) by Andrew dry Jinan Chemical Limited. Jinan Cheung Dry Chemical Co. (www.xiangqianhuagong.com) (www.dilunyierchun.com) is a professional, "glycol" company. Since its inception, we adhere to the "good faith, sound management" approach, the courage to participate in healthy competition in the market, so that the "chemical universe" brand has a good reputation. We adhere to the "service first, customers first" principle, so that the dry chemical Xiang won the trust of customers in alcohol in public, establish a good corporate image. Special Note: This information is for reference pictures and information, please contact us to obtain the most accurate information, thank you! You can also access (www.dilunyierchun.com/supply_details_40807565.html), for more information about the company.