Product Name: anhydrous sodium level: AR / CP
Implementation of the standards: GB / T 9853-2008
Molecular formula: Na2SO4
Properties: This reagent is colorless transparent crystal or powder, soluble in water.
Hazardous characteristics: no special combustion characteristics of the explosion. Heat generated by the decomposition of toxic sulfide
Materials to avoid: smoke. Acid, aluminum and magnesium.
Items | Indicators | |
AR | CP | |
content(Na2SO4),W/% ≥ | 99.0 | 98.0 |
pH value（50g/L,25℃） | 5.0～8.0 | 5.0～8.0 |
Clarity test / number ≤ | 3 | 5 |
Water insoluble matter，W/% ≤ | 0.005 | 0.02 |
Loss on ignition，W/% ≤ | 0.2 | 0.5 |
chloride（Cl），W/% ≤ | 0.001 | 0.005 |
Phosphate（PO4），W/% ≤ | 0.001 | 0.002 |
Total nitrogen content(N), W/% ≤ | 0.0005 | 0.001 |
Potassium(K) , W/% ≤ | 0.01 | -- |
calcium(Ca) , W/% ≤ | 0.002 | 0.005 |
iron(Fe) , W/% ≤ | 0.0005 | 0.0015 |
Heavy Metals (as Pb), W/% ≤ | 0.0005 | 0.002 |