Carboxylic-Sulphonate Quadruple Polymer is non-phosphorus; non-foaming dispersant and has good environmental acceptability. Quadruple Polymer is highly effective as dispersant and scale inhibitor in industrial water treatment and cooling water treatment as well as in all types of water based formulations. Quadruple Polymer is capable of inhibiting both calcium carbonate and calcium phosphate scale. Carboxylic-Sulphonate Quadruple Polymer is especially effective in highly stressed systems that contain high electrolyte concentrations and have a high number of cycles of concentration.