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Item | Standard |
| Appearance | White Flakes |
KOH Assay | ≥90.0 |
K2CO3 | ≤0.5 |
Chlorides (as C1) | ≤0.005 |
Sulfates (as SO4) | ≤0.005 |
Phosphate (as PO4) | ≤0.005 |
Nitrate (as N) | ≤0.0005 |
Silicate (as SiO3) | ≤0.01 |
Fe | ≤0.0005 |
Na | ≤0.8 |
Al | ≤0.002 |
Ca | ≤0.005 |
Ni | ≤0.0005 |
Heavy Metal (as Pb) | ≤0.002 |