① improved Raper law. Methacrylate manufacturers, acetylene and carbon monoxide with an alcohol after the reaction of this method begins acrylate direct methacrylate, passed through the nickel carbonyl in carbon monoxide instead of carbon monoxide supply methacrylate, can reduce the regeneration of nickel carbonyl and nickel recovery. The reaction solvent is an alcohol. The reaction temperature is 30 ~ 50 ℃, pressure 0.1 ~ 0.2MPa, acetylene and carbon monoxide ratio of (1.01 to 1.10): 1 (molar ratio), total carbon monoxide ratio of methanol (1.1 to 3) :1 (molar ratio ). The amount of acid is maintained at 80% to 99% of nickel carbonyl (molar ratio), for suppressing the generation of acid chloride. This method is characterized by operating at atmospheric pressure, the device is easy to solve, but still need to prepare toxic nickel carbonyl. Thus, the thermodynamically available for processing multi-component multi-phase systems, the problem of chemical equilibrium will have conditional processing. Fourth, he further discussed the issue of equilibrium under the influence of electrical, magnetic and surface of. Also, he is considered derived thermodynamically most simple, the most essential and most abstract thermodynamic relations, namely the phase rule, in rather a state of equilibrium phase rule is freedom of zero indicated that state. Gibbs principal balance of research articles published in his three being. In 1873, he has published in the Journal of the first two Connecticut College, immediately caught the attention of Maxwell. Gibbs said that just before the two can be a prepared text, in two parts in 1876 and in 1878 published a third article "on the composite material balance", the article up to 300 pages, including more than 700 formulas. Two articles discuss the single chemical substance system, this article is for multi-component composite system are discussed. Since the introduction of the thermodynamic potential, as long as a single component system state equations little change, then the problem of multi-component system can be handled. Baoding methyl acrylate, methyl acrylate direct, Xiang dry chemical (certified merchants) by Andrew dry Jinan Chemical Limited. Jinan Cheung Dry Chemical Co. (www.xiangqianhuagong.com) (www.dilunyierchun.com) is specialized in the "glycol" enterprise, the company of "honesty, hard service" concept, to provide you with the most quality products and services. Welcome to inquire! Contact: Mr. You can also access (www.dilunyierchun.com/supply_details_45192590.html), for more information about the company.