NH6PO4

NH₄H₂PO₄ (ammonium dihydrogen phosphate) is an inorganic ceramic compound belonging to the phosphate family, commonly used as a precursor or binder phase in advanced ceramics and refractory materials. It finds industrial application in thermal barrier coatings, fire-resistant composites, and phosphate-bonded ceramics for high-temperature environments, where its ability to form strong ceramic bonds and withstand thermal cycling offers advantages over traditional alumina or silicate binders.