1.food grade potash alum 2.free sample 3.good quality 4.low price food grade potash alum1.Specifications 2012 Potash ... Other names: Potassium alum, Potash alum, Tawas 2.Property Aluminium Potassium Sulfate is colorless, transparent, particle or crystalline powder, ... 50.010.00020.0021.0 ItemunitCriteriaAnalysis resultsconclusionAluminium potassium sulfate%99.2min99.5EligibleHeavy metal(As Pb)%0.002max0 ...