After the organic chemical textile industry developed, can not meet the needs of natural dyes; With the development of the iron and steel industry, coking industry, by-product of coal tar in organic chemistry chemists need to use the achievements of the coal tar separated into: anthracene, phenanthrene. etc. .1856, the British Mauveine by synthetic dyes, after analysis to determine the structure of natural Alizarin dihydroxyanthraquinone, then the coal tar anthracene as raw material, through oxidation, substitution, hydrolysis and rearrangement reactions, Alizarin exact imitation of the natural product. Similarly, the pharmaceutical industry, perfume industry also have the same natural product synthesis and chemical hydrazine hydrate hydrazine use a larger variety of .1867 years, on behalf of the Swedish invention that Matt explosives ( see) hydrazine hydrate hydrazine quotes extensively for mining and military, when organic chemistry Chemical Establish coal and limestone as raw materials to produce calcium carbide method using electric (ie) the first factory in 1895, and then by hydrolysis of calcium carbide Acetylene hydrazine hydrazine hydrate market, as a starting point for the production of acetaldehyde, acetic acid and a series of basic organic raw .20 century after the development of hydrazine hydrate hydrazine, calcium carbide, high energy consumption, most of the original acetylene series, is replaced by raw materials for production to flourish: Since the 1950s, the world economy into recovery from the post-war period of development. The rapid development of synthetic rubber, plastics, synthetic fibers and other materials to make petrochemicals widespread attention in Europe, Japan and other parts of the world. In terms of the development of polymer chemistry, developed in Europe in the 1950s, the success of some of the key new technologies such as the 1953 Federal German chemist K. Ziegler studied a novel catalyst system successfully produced low-pressure polyethylene, and quickly put the industry production; 1955 Imperial Chemical Industries to build a large-scale polyester fiber production plant; 1954 Italian chemist G. Ziegler-Natta catalyst for further development of the synthesis of three-dimensional isotactic polypropylene, and put industry in 1957 produce. Other areas also have great development, in 1957 the American Standard Oil Company of Ohio has successfully developed catalyst for propylene oxide production ammoniated acrylonitrile, and put into production in 1960; in 1957 the direct oxidation of ethylene to acetaldehyde way to succeed, and in 1960 built a large manufacturing plant. Into the 1960s, there has been invested in the production of ethylene oxidation of vinyl acetate, vinyl chloride, oxygen and other important chemical products made of vinyl chloride. Continue the successful development of new technology for the petrochemical, the traditional staple products on calcium carbide acetylene as the starting material, has transferred the petrochemical feedstock route. In the meantime, Japan, the Soviet Union also began construction of the petrochemical industry. Japan developed rapidly, only ten years time, the petrochemical production technology has reached the international advanced level. The Soviet Union in the synthetic rubber, ammonia, oil protein production, have outstanding achievements. Hydrazine Hydrate Hydrazine quote Shenzhen hydrazine hydrate hydrazine, Xiang dry chemical (View) by Andrew dry Jinan Chemical Limited. Jinan Cheung Dry Chemical Co. (www.xiangqianhuagong.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!