supply of cooling water treatment chemicals along with services of cw chemical treatment in circulating cooling water for four months to maintain coc performance of condensers at stps (o&m), suratgarh supply of cooling water treatment chemicals along with services of cw chemical treatment in circulating cooling water for four months to maintain coc performance of condensers at stps ( o and m ) , suratgarh. , supply of cooling water treatment chemicals , 1-hydroxy ethylidine 1-1 diphosphonic acid ( hedp ) appearance- colourless transparent liquid molecular weight- 206 active content- 50% ± 2% phosphorous acid ( as po4 ) -2.5 % max. phosphoric acid ( as po4 ) -0.7 % max. density ( 20°c ) g / cm3-1.39-1.49 ph ( 1% water solution ) -2.0 max calcium sequestration mg caco3 / gm-=500 mg / gm solubility-soluble in water , polymeric dispersant copolymer ( non -foaming type, biodegradable ) function in cooling water system-dispersant, descalant or anti precipitant composition- low molecular weight ( > 4000 & <5000 ) -sulphonated acrylic copolymer active content- 50% ± 3% ph ( as is basis ) - 3.0 -4.5 total solids-42.5 %-46 % special gravity-1.1-1.25 , dispersant copolymer ( non -foaming type, biodegradable ) function in cooling water system-dispersant, descalant or anti precipitant composition- low molecular weight ( > 4000 & <8000 ) -acrylic terpolymer ( carbolyxate / sulphonate / nonionic ) active content- 50% ±3% ph ( as is basis ) - 2.5-4.0 total solids-43.0%-44 % special gravity-1.15-1.20 brooke field viscosity -150-400 cp , zincsulphate ( znso4.7 h2o ) ( tech. grade ) is-1880:1977 appearance - colourless or white crystals zinc as zn % ( min ) -22.5 lead as pb % ( max ) -0.01 cadmium as cd % ( max ) 0.01 magnesium as mg % ( max ) 0.001 copper as cu % ( max ) -0.02 iron as fe% ( max ) -0.02 insoluble % ( max ) -0.1 , 2-phosphonobutane-1, 2, 4- tricarboxylic acid ( pbtc ) : appearance - colourless to pale yellow clear liquid molecular weight - 270 active acid content - 49% - 51% phosphorousacid ( as po4 ) - 0.5 % max. phosphoric acid ( as po4 ) - 0.2 % max. density ( 20°c ) g / cm 3- 1.27-1.30 ph ( 1% water solution ) - 2.0 max. iron content - 5 ppm chloride as cl- -10 ppm max , linear alkyl benzene sulphonic acid, labsa 96%, appearance- clear light brown viscous liquid colour, klett - 70 max active matter % - 96 min free sulfuric acid , % -1.5 max free oil ( unsulphonated matter ) % - 1.5 max moisture % - 1.0max acid value -175 - 190 , bio dispersant 1. organic polymer & based on blend of ethylene oxide & propylene oxide condensate ( eopo ) . 2. neat 100 % pure product ( 100% active ingredient content ) .it should not containipa ( isopropyl alcohol ) or any other solubilisingsovents.it should not be blended withany solvent. 3.non -ionic surfactant & does not cause foaming or very low foaming @ dosing level 5 mg / l ( 100 % basis ) 4.ph---> 5.8-8.0 , sodium chlorite naclo2 ( min. 25 % ) , sub total ( from 1.01 to 1.08 ) , total packing & forwarding charges ( on 1.09 ) , sub total of suppy+p&f , total freightup to stps site , total insurance charges ( including gst ) , other taxes / charges ( if any ) , total supply amount ( 1.11 to 1.14 ) , etc ( as per scope of work ) , services for cooling water treatment ( complete job ) , any other charges , total etc amount ( 2.01+2.02 )