Partical size(-2;m) Min 95% Free acid(NaOH) Max 0.25% Moisture Max 9% PH 4 Specific surface area 285m2/g Density 0.59 g/ml Heavy metal (pb) Max 0.005% Arsenic content Max 0.0005% Decoloring ability Min 92% 25kg/bag,Two PP bag with PE liner insider as the attached pictures.
