TN-SC-PROC-128

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) Active Content- 40% ± 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) Ter Polymer Active Content- 50% ± 3% pH (as per basis)- 2.5-4.0 Total solids-43.0 %-44 % Special Gravity-1.15-1.20 Brooke field Viscosity -150-400

Zinc Sulphate (ZnSO4.7 H2O)(Tech. Grade) IS-1880:1977 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): Molecular weight - 270 Active Acid Content - 49-51 % Phosphorous acid (as PO4) - 0.5 %. Phosphoric acid (as PO4) - 0.2 % Density (20°C) g/cm 3- 1.27-1.30 pH (1% water solution) - 2.0 max. Iron Content - 5 ppm max. Chloride as Cl ˉ -10 ppm max

Linear Alkyl Benzene Sulphonic Acid,LABSA 96%, Colour, Klett - 70 max Active Matter % - 96 min Free Sulfuric Acid , % -1.5 max Free Oil (NDOM) % - 1.5 max Moisture % - 1.0 max 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 solubilising sovents.It should not be blended with any 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 %) Physical State- Liquid Appearance- Colourless to light green yellow Odour- Typical Chlorine % Active Content- 25% Max. pH- 8 to > 12 Specific Gravity 1.2 to 1.25

Services

Services (ETC of cooling water treatment chemicals along with services of CW chemical treatment in circulating cooling water for one year as per scope of work)

NEELAM AQUA AND SPECIALITY CHEM PVT LTD