Product name: Potassium hydroxide Level: AR / CP
Implementation of the standards: GB / T 2306-2008
Formula: KOH
Properties: This reagent is uniformly white granular or flaky solid. Easy to absorb carbon dioxide and moisture in the air, soluble in water.
Hazardous characteristics: acid neutralization reactions and exothermic. This product will not burn, water and steam heat large, the formation of corrosive solution. Highly corrosive.
Incompatibility: Strong acids, flammable or combustible, carbon dioxide, acid anhydride, acid chloride.
Items | Indicators | |
AR | CP | |
content（KOH），W/% ≥ | 85.0 | 80.0 |
Carbonate (K2CO3 to count)，W/% ≤ | 1.5 | 2.0 |
Clarity test / number ≤ | 4 | 6 |
chloride(CL）,W/% ≤ | 0.01 | 0.025 |
Sulfate（SO4），W/% ≤ | 0.005 | 0.01 |
Total nitrogen content（N），W/% ≤ | 0.001 | 0.005 |
Phosphate（PO4），W/% ≤ | 0.005 | 0.01 |
Silicate (SiO3）, W/% ≤ | 0.02 | 0.1 |
sodium(Na），W/% ≤ | 2.0 | 2.0 |
magnesium(Mg), W/% ≤ | -- | -- |
aluminum（Al）, W/% ≤ | 0.005 | -- |
calcium(Ca), W/% ≤ | 0.005 | 0.02 |
iron(Fe)，W/% ≤ | 0.001 | 0.002 |
nickel(Ni) , W/% ≤ | 0.0005 | -- |
Zinc(Zn), , W/% ≤ | -- | -- |
Heavy Metals (as Pb), W/% ≤ | 0.002 | 0.003 |