Purity: (same/more than) 99.0%
Insoluble in H2O: (same/less than) 0.005%
Insoluble in Alcohol: (same/less than) 0.01%
pH of a 5% Solution at 25C: 5.3 to 8.7
Chloride: (same/less than) 0.005%
Sulfate: (same/less than) 0.005%
Ammonium: (same/less than) 0.003%
Heavy Metals (as Pb): (same/less than) 0.0005%
Iron: (same/less than) 0.0002%
Sodium: (same/less than) 0.005%
Iodine-consuming Substances: To pass test ((same/less than) 0.2mL of 0.1N Iodine solution/g)