Purity: (same/more than) 99%
Solubility (3N HCl): Clear, colorless and complete
Loss on Drying: (same/less than) 0.1%
Specific Rotation: -24.0 degrees to -32.0 degrees
Residue on Ignition: (same/less than) 0.1%
Chloride: (same/less than) 0.05%
Sulfate: (same/less than) 0.05%
Heavy Metals: (same/less than) 0.005%
Iron: (same/less than) 0.005%
Arsenic: (same/less than) 0.001%