TN-MM-1590

Amount

Supply of Cooling Water Treatment Chemicals

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

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 Viscosit -150-400 cp

Zinc Sulphate (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 % Phosphorous acid (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 ˉ -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 % - 1.0 max Acid Value -175 - 190

Sodium Chlorite NaClO₂( Min. -25 %)

Sub Total (Sr.No.1.01 to 1.08)

Packing & Forwarding Charges (on 1.09)

Sub Total on (1.09+1.10)

Total GST Amount (on 1.11)

Total Freight Charges upto STPS site (on 1.09)

GST on Freight Charges (on 1.13)

Insurance Charges upto STPS Site

Any Other charges/Taxes

Sub Total (Sr.1.11+1.12+1.13+1.14+1.15+1.16)

ETC of Cooling water treatment chemicals alongwith services of CW Chemical Treatment in Circulating Cooling Water.for one year.(As per Scope of Work annexed)

GST (on 2.01)

Any Other charges/Taxes

Sub Total(2.01+2.02+2.03)

Grand Total of Supply & ETC (1.17+2.04)