Specification | ||
Test Item | Specification | Test Method |
Appearance | White to pale yellow powder | Visual |
Assay | Minimum 98% | In-house |
State of solution(3% aqueous solution) | Clear | In-house |
Color of solution | Colorless or pale yellowish. | In-house |
Ph Value PH | 8.0~11.0 | In-house |
Loss on drying | 8.0%~11.0% | In-house |
Water | 9.0%~11.0% | In-house |
Heavy Metals (Pb) | Maximum 10ppm | In-house |
Arsenic (As) | Maximum 2ppm | In-house |