Ammonium perchlorate was used in the disaster that occurred in what city?
Ammonium perchlorate Ammonium perchlorate ("AP") is an inorganic compound with the formula NHClO. It is a colorless or white solid that is soluble in water. Perchlorate is a powerful oxidizer and ammonium is a good fuel. This combination explains the usefulness of this material as a rocket propellant. Its instability has involved it in a number of accidents, such as the PEPCON disaster.
Chicago Fire of 1874 The Chicago Fire of 1874 was a conflagration in Chicago, Illinois, that took place on July 14, 1874. Reports of the extent of the damage vary somewhat, but sources generally agree that the fire burned forty-seven acres just south of the Loop, destroyed 812 structures and killed 20 people. The affected neighborhood had been home to Chicago's community of Jewish immigrants from Russia and Poland, as well as to a significant population of middle-class African-American families; both ethnic groups were displaced in the aftermath of the fire to other neighborhoods on the city's West and South Sides.