Vicamol SNF (P) manufactured by Viswaat chemicals Ltd. belogns to Sodium salt of Naphthalene Sulphonic Acid Formaldehyde condensates type of products. The Commerical materials is supplied as a powder. These products have been found to be an excellent dispersants, for cement, with low foaming characteristics, less or no tendency of hardening retardation, and air entrainment as compared to coventional chemical admixtures. However, the dispersive ability of these products vary depending upon the cement.