Specifications include, but are not limited to: Scale inhibitor, "one-drum" combination, Liquid, phosphonate/polymer type This liquid product shall be a blend of sodium phosphonate compound, sodium lignosulfonate type polymer, sodium acrylate type polymer, sodium hydroxide, sodium sulfite (oxygen scavenger), and antifoam compound. The product shall be effective in sequestering, dispersing and transporting scale-forming minerals from the boiler through normal blow-down. Since it does not precipitate or chelate hardness stoichiometrically, it shall not require stringent tests and controls. Due to its polymeric threshold effect, it can tolerate wide fluctuations in hardness entering the system. • Scale inhibitor/dispersant, liquid copolymer type for steam generating systems This liquid dispersant shall contain a synthetic co-polymer for superior iron and phosphate dispersion. It shall be suitable for both high and low pressure boilers. It shall inhibit the tendency of precipitated salts and sludges to plate out on metal surfaces.
