| Exceeds A.C.S. Specifications |
| Meets Reagent Specifications for testing USP/NF monographs |
| Assay (K2CO3) (by acid-base titration) min. 99.0 % |
| Insoluble Matter max. 0.01 % |
| Calcium (Ca) max. 0.002 % |
| Chloride (Cl) max. 0.003 % |
| Magnesium (Mg) max. 0.002 % |
| Phosphate (PO4) max. 0.001 % |
| Silica (SiO2) max. 0.005 % |
| Sulfur Compounds (as SO4) max. 0.004 % |
| Sodium (Na) max. 0.02 % |
| Trace Impurities (in ppm): |
| Heavy Metals (as Pb) max. 5 |
| Iron (Fe) max. 5 |
| Copper (Cu) max. 100 ppb |
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