Product Specifications
| TEST | SPECIFICATION |
| Meets ACS Reagent Chemical Requirements | |
| For Laboratory,Research,or Manufacturing Use | |
| ACS – Assay (Na₂SO₄) | >= 99.0 % |
| ACS – Insoluble Matter | <= 0.01 % |
| ACS – Loss on Ignition | <= 0.5 % |
| ACS – pH of 5% Solution at 25°C | 5.2 – 9.2 |
| ACS – Chloride (Cl) | <= 0.001 % |
| ACS – Phosphate (PO₄) | <= 0.001 % |
| ACS – Calcium (Ca) | <= 0.01 % |
| ACS – Iron (Fe) | <= 0.001 % |
| ACS – Magnesium (Mg) | <= 0.005 % |
| ACS – Potassium (K) | <= 0.01 % |
| ACS – Extraction-Concentration Suitability * | Passes Test |
| ACS – Heavy Metals (as Pb) | <= 5 ppm |
| Nitrogen Compounds (as N) | |
