Product name: KI Level: AR / CP
Implementation of the standards: GB / T 1272-2007
Molecular formula: KI
Properties: This reagent is white crystal, soluble in water, soluble in ethanol, acetone. The humid air micro deliquescence, long home will precipitate free iodine and yellow.
Hazardous characteristics: This product with hydroxylamine, magnesium can react violently in contact.
Avoid: narcotics
Items | Indicators | |
AR | CP | |
content（KI），W/% ≥ | 99.0 | 98.5 |
pH（50g/L Solution，25℃） | 6.0～8.0 | 6.0～8.0 |
Clarity test No. ≤ | 3 | 5 |
Water insoluble matter，W/% | 0.01 | 0.02 |
Iodine salt iodization (to IO3 dollars), W/% ≤ | 0.002 | 0.005 |
Chlorides and bromides (in CL),W/% ≤ | 0.02 | 0.05 |
Sulfate（SO4），W/% ≤ | 0.005 | 0.01 |
Phosphate（PO4），W/% ≤ | 0.002 | -- |
Total nitrogen content（N），W/% ≤ | 0.002 | 0.002 |
sodium（Na），W/% ≤ | 0.1 | -- |
magnesium(Mg), W/% ≤ | 0.002 | 0.005 |
calcium(Ca), W/% ≤ | 0.002 | 0.005 |
iron(Fe)，W/% ≤ | 0.0003 | 0.0005 |
arsenic(As), W/% ≤ | 0.00002 | -- |
barium(Ba), W/% ≤ | 0.002 | 0.004 |
Heavy Metals (as Pb), W/% ≤ | 0.0005 | 0.001 |
Reducing substances | qualified | -- |