NIT No. 09 2022 23 Item No.1

SPECIFICATIONS FOR FERRIC CHLORIDE (ANHYDROUS) BIS MARK Molecular Formula FeCl3 Molecular Weight 162.2 g/mol Physical State: Solid Grade: Anhydrous/ Commercial grade Colour: Greenish-Yellow to brown-black solid. Odour: Faint Hydrochloric odor when dissolved in water Solubility: Slightly Soluble in water, 5 to 10 mg/mL at 68° F (NTP, 1992) In cold water: 74.4 g/100 cc at 0 °C; in hot water: Combustibility: Non-Combustible pH: 2/ 2.7 of the solution Density: 2.8 at 680 F (at anhydrous) Boiling point: 5990 at 760 mm Hg (NTP 1992) Melting point : 5830 at 760 mm Hg (NTP 1992) VOC Content: NIL Spilled solid: Not more than 2% Purity: Minimum 98% Iron (as Fe) : Minimum 33% Ferus Salt as (FeCl2) Maximum 0.10% The ferric chloride must be free from toxic and heavy metals. Other Experimental Properties Standard molar enthalpy (heat) of formation at 298.15 deg K is -399.5 kJ/mol (crystal); Standard molar Gibbs energy of formation at 298.15 deg K is -334.0 kJ/mol (crystal); Standard molar entropy at 298.15 deg K is 142.3 J/mol/K (crystal); Molar heat capacity at constant pressure at 298.15 deg K is 96.7 J/mol/K (crystal) Grades: Anhydrous 96%; 42 deg Be solution, photographic and sewage grades. Packaging: In PP bags as per BIS guidelines

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