Potassium Sulfite for Photography Industry is available as a colourless or pale yellow clear solution. Potassium Sulfite maintains a pH level ranging from 9 to 10. Potassium Sulfite comprises of thiosulphate in a range of 0.008 % and finds application in photography industry. Potassium Sulfite for Photography Industry has a specific gravity of 1.447 to 1.465.