Procurement of sodium meta bi sulphite for ERS RO, antiscalant , EDTA and sodium dodecyl benzene sulphonate for ERS, ferric chloride and sodium hypo chloride for ETP and chlorination plant 1x660MW, HTPS, Kasimpur through Open E Tender.

SODIUM META BI SULPHATE(60%) Physical State- Powder Solid Appearance Off-white Odor- pungent pH 4-6 5% aq.sol Melting Point/Range- 150 °C / 302 °F Specific Gravity -1.4 Solubility -Soluble in water Decomposition Temperature -120 °C Molecular Formula -Na2 O5 S2 Molecular Weight -190.1 IS 4752

ANTISCALANT(100%) Appearance : liquid Colour : amber, light yellow pH : 4.0 - 5.5 Melting point/freezing point : -7.7 °C Boiling point/boiling range : 100.0 °C Vapour pressure : 17.500 mmHg Density : 1.21 g/cm3 Water solubility : completely soluble

ETHYLENEDIAMINE TETTRACETIC ACID (98%) Appearance -White crystaline solid powder form Melting point Approx.- 400 degree C PH value- 10.0 to 11.5 Flash point -100 degree C Flamability -Non-flamable Ignition > 200 degree C Molecular Wt.- 416.21 Solubility in water -very good

Sodium dodecyl benzene sulfonate(90%) Physical State -Solid Appearance -Light yellow Odor -mild aromatic pH 8-10 @ 20°C- 20 g/L aq.sol Flash Point -170 °C / 338 °F

Ferric Chloride(43%) IS 711 Physical state : Liquid Color : amber Odor : None. Flammability (solid, gas) : Non flammable. Specific gravity / density : 1.4 g/ml Solubility : Soluble in water. Viscosity, kinematic : 6.8 cSt

SODIUM HYPO CHLORITE(NaOCL) (10%) Appearance: Yellow to light green liquid. Odor: Bleach like odor. Solubility: Infinitely soluble in water. Specific Gravity: 1.15 – 1.16 Boiling Point: 180 OF decomposes slightly Vapor Pressure: 17.5 @ 68 F Evaporation Rate: < 1 (butyl acetate = 1) pH: 11 to 14 IS 11673