Purity: (same/more than) 99.0%
Appearance: White crystalline powder
Melting Point: 97 degrees to 105 degrees C
Specific Rotation: -1.8 degrees to -2.6 degrees
Loss on Drying: (same/less than) 1%
Residue on Ignition: (same/less than) 0.2%
Arsenic: (same/less than) 0.0001%
Heavy Metals (as Pb): (same/less than) 0.002%
Sulfate: (same/less than) 0.05%
Iron: (same/less than) 0.002%