Potassium Sulphite Solution is a photographic chemical with a molecular weight of 158. Potassium Sulphite Solution is a colourless or pale yellow clear solution. Potassium Sulphite Solution comes with a pH range of 9 to 10pH with a purity of 45% w/w. Potassium Sulphite Solution is used to aid the specific application and process needs of the photography industry and laboratories