... 2.986, melting point 570 °C, soluble in water and liquid ammonia, insoluble in dilute nitric acid and alcohol have been, ... as the oxidizer, contact with organic , friction collision, when a fire caused by fire and explosion, and release of crimson ... fireworks and a variety of signal flares, matches, fire extinguishers, analytical reagents and optical glass, TV tubes are also used in the pharmaceutical ...