... melting point 73.3-76.7 °C. It dissovles in water, the aqueous solution was strongly alkaline. It is insoluble in ... , chemical industry, textile, printing and dyeing, paper making, electrical ,mechanical,water softeners, cleaning detergents; of boiler tube. Dye intermediates desiccant, sugar juice ... (Na2O) %16.5--19.016.0--19.015.5--19.Water insoluble %≤0.050.10Sulfate (SO42-) % ≤0.50.8Chloride (Cl-) %≤ ...