Cyanuric Acid powder , granular or colored tablet form 98.5%min Cyanuric Acid General DescriptionFormula : C3H3N3O3 Molecular Weight : 129. ... min4.0minAmmelide/Ammeline0.5%max Iron(Fe)20 ppm max Sulphate(SO42-)0.5%max Size 8-30mesh, 90%through Usage ... :15g, 25g, 50g, 100g,150g,200g,250g, 330g. Cyanuric Acid 98.5%min Form: Granular Powder Tablets