Potassium Acid Phthalate, Bio-Refined,100 G - 60012Absorbance cut off @ 309nm (0.1M in H2O), Al 5 ppm Max, As 0.1 ppm Max, Assay 99.5 % - Min, Ba 5 ppm...
Potassium Acid Phthalate, Bio-Refined,500 G - 60011Absorbance cut off @ 309nm (0.1M in H2O), Al 5 ppm Max, As 0.1 ppm Max, Assay 99.5 % - Min, Ba 5 ppm...