Ammonium hexafluoridosilicates: Synthesis, structures, properties, applications

The review systematizes the results of research reflecting the current state of various aspects of chemistry and applied use of ammonium hexafluoridosilicates. The role of ammonium hexafluoridosilicates is noted in the context of solving the problem of utilization of solutions of fluorosilicic acid, the main alternative source of fluorine for the chemical industry.