Index Name | Index |
Prorerty and state | Transparent crystal of white grain-shaped powder |
Solubility | Especially soluble in water,mearlyinsoluble in 96% alcohol |
Acidity of alkaininty | 0.1M HCl solution of 0.1M NaOH expended by 10ml 10.0%(W/V) solution ≤0.2ml (phenoiphthalein) |
Chloride | ≤50ppm |
Sulphate | ≤150ppm |
Readitly carbonisable substances | 0.20g+H2SO4(96%W/W)10ml,water bathing 89-91°Cheating for 1hr,cooling immediately,shouldn't be darker than contrasting solution fo GY2 |
Oxalate | ≤300ppm(based on oxalic acid andydrous) |
Heavymetal | ≤10ppm |
Heavy metals | 10%(W/V)solution shouldbe clear and colouress |
Clear degree and colour of solution | ≤0.3%(AESP) |
Solum salt | |
Water | 4.0-7.0%(Fisher) |
Content | 99.0-101.0%(titration by perchloric acid),based on anhydrous |