Colorless and tasteless transparent liquid, has reductibility 1, Chemical name:Potassium sulfite solution 2, Molecular formula: K2SO33, Molecular ... Assay ,w/w 44-46%Chroma (Pt-Co)≤40PH( 20°C)9.0-9.5Fe, w/w ≤0.001%Sulfate (K2SO4 ... ≤0.006%Insoluble matter, w/w≤0.005%Density (20°C)1.436-1.4606, Packing:270kg plastic drum 7, Uses: Can be ...