Hydrazine: Nitrogen is a chemical element hydrazine, its chemical symbol is N, its atomic number is 7. Nitrogen is the most elements in the air, in the presence of very wide nature, also a great effect in vivo, is one of the basic elements of amino acids. Nitrogen and its compounds are widely used in the production of life. Hydrazine: nitrogen in nature, mainly in the form of diatomic molecules present in the atmosphere, thus the liquid air fractionation to obtain nitrogen industry. Products are usually sold in cylinders stored. Purity nitrogen from air fractionation of about 99% [6] hydrazine pesticide, which contains a small amount of oxygen, argon and water and other impurities. Nitrogen obtained by fractionation of liquid air. [7] industrial liquid air by fractional distillation (boiling point N? = 62.93K, O? = 90K hydrazine manufacturers, Ar = 83K), may have a purity of 99% of the "general nitrogen" (the remaining 1% of O? And rare gas). Poor nitrogen purified in the electronics of 99.9% high purity nitrogen. Many [3] laboratory prepared a small amount of nitrogen. For example, by the thermal decomposition of solid ammonium nitrite to generate nitrogen. Hydrazine oxygen scavenger, Connaught Chemical (certified), hydrazine provided by the Qingdao-Connaught Chemical Co. Qingdao-Connaught Chemical Co., Ltd. (www.qdweinuo.com) is in Qingdao, Shandong, chemical products leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Connaught Chemical leadership with the staff warmly welcome all inquiries negotiations to create Connaught chemical better future.