Description
Brand : CDH
Packings : 100 Gram
Grade : Analytical Reagents (AR)
PARAMETER LIMIT
- Description Colourless or white to pale yellow crystalline powder.
- Solubility 10% solution in water is clear and almost colourless.
- Identification Passes tests.
- Minimum Assay (Iodometric) 99.7%
- pH of (5% soln.in water ) 2.2 – 2.5
- Specific rotation (a) 20 (C=10% in water) + 20.5° to + 21.5° Absorbance (of 0.001% w/v soln.in 0.01M
HCl at ë max.244 nm) About 0.56
MAXIMUM LIMIT OF IMPURITIES
– Loss on drying (at 110°C) 0.1%
– Sulphated ash 0.05%
– Water insoluble matter 0.003%
– Chloride (Cl) 0.005%
– Sulphate (SO4) 0.002%
– Copper (Cu) 0.0005%
– Iron (Fe) 0.0002%
– Heavy Metals (Pb) 0.001%
– Org. volatile impurities Meets the requirement.
– Oxalic acid 0.2%
– Related substance Passes test
