Explanation

It is also called thunderbolt mercury. The appearance is white or light gray crystalline powder, belonging to the monocrystal system. thunderbolt mercury is slightly soluble in water and ethanol at room temperature. Easily soluble in solutions such as potassium cyanide, ammonia, pyridine, acetone, and hydroxyethylamine. The basic preparation method of thunderbolt mercury is to dissolve mercury in nitric acid and then react with ethanol. According to the different production methods of mercuric acid, two products can be obtained, namely gray and white mercuric acid, which belong to the rhombic crystal system. The relative density of thunderbolt mercury is 4.43, and the apparent density is 1.22-1.60g/cm3. At 30 ℃ and 90% relative humidity, moisture absorption is 0.02%. The 5s explosion tcmperature is 210 ℃, and the limit detonating charge is 190mg. The explosion heat is 1785J/g, the explosion capacity is 243mL/g, and the electrostatic initiation energy is 0.025J. It reacts with various metals, especially magnesium and aluminum, and its effects on copper, cadmium, and nickel will gradually slow down. thunderbolt mercury is the first primary explosive discovered and used by people, and plays a significant role in the development history of primary explosive. With the development of primary explosive technology, thunderbolt mercury has been gradually replaced by lead azide and other primary explosives due to its serious pollution, poor thermal stability and pressure resistance. thunderbolt mercury has been basically eliminated in China.

Classification