Hydrazine: nitrogen content in the crust rarely in nature most of the nitrogen in the form of elemental nitrogen molecules in the atmosphere, nitrogen accounted for the volume of air seventy-eight%. The most important mineral nitrogen is nitrate. [1] The percentage by weight of nitrogen in the earth's crust is 0.0046%, the total reached about 4 × 1012 tons. Animals and plants, the protein contains nitrogen. There nitrate in soil, such as KNO ?. In South America, Chile saltpeter mine (NaNO?) Hydrazine organic fuel, which is the world's only such mineral, it is a rare mineral nitrogen. [2] It has been found cosmic interstellar molecules containing nitrogen, such as NH?, HCN and the like. The abundance of nitrogen accounting for 1.8 × 10 16. There are two natural isotopes of nitrogen were 99.63%, 0.365%. Hydrazine: nitrogen balance in three ways: 1. Nitrogen balance: in a certain period of time, the amount of nitrogen intake and discharge of nitrogen equal. Then the synthesis and degradation of proteins in the human body balance hydrazine preservative, the body's muscle circumference in the original round and level. 2. Positive nitrogen balance: nitrogen intake is greater than the amount of nitrogen discharged hydrazine manufacturers, protein synthesis is greater than the amount of decomposition, the movement after the destruction of muscle fibers will be fixed quickly growing. 3. Negative nitrogen balance: nitrogen intake is less than the exclusion of nitrogen, protein synthesis is less than the decomposition of the body's muscle protein at this time to ensure the activities of the body is decomposed for energy, the muscles in the reduction state. [4] 7 Safety Precautions Editor: nitrogen to elemental (nitrogen) is in the form of toxic hydrazine, when often toxic compounds in the form of, for example, typically ammonia, nitrite and the like. Contact nitrogen without special protection should pay attention to prevent contact with liquid nitrogen frostbite. Organic hydrazine fuel, hydrazine, Connaught Chemical provided by Qingdao-Connaught Chemical Co. Qingdao-Connaught Chemical Co., Ltd. (www.qdweinuo.com) strong, credible, in Qingdao, Shandong chemical products industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Connaught chemical into the brilliant and you work for a better future!