PARAMETER LIMIT

• Description White crystalline powder.
• Solubility 10% solution in water is clear and colourless.
• Minimum Assay (Acidimetric ; on dried substance) 99.0%
• UV Transmission in 1.0 cm cell (0.005 mol/lit. in water; 1cm cell) at 250 nm Min. 98.0%
• pH of (10% solution in water) 5.5 – 7.5

MAXIMUM LIMIT OF IMPURITES
– Loss on drying (at 120°C) 2.0%
– Absorbance (0.005 mol/lit. in water)
– λ 200 nm 0.15
– λ 220 nm 0.05