製品紹介
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ITEMS | Specifications |
Appearance | White crystals or crystalline powder |
Assay. % | 98.5~101.5 |
Identification | Positive |
Transmittance, % | >=98 |
pH | 5.5~6.5 |
Heavy metal(as Pb),ppm | =<20 |
Loss on drying, % | =<0.20 |
Residue on ignition, % | =<0.1 |
Chioride(as Cl), % | =<0.007 |
Sulphate(as SO4), % | =<0.0065 |
Iron(as Fe), % | =<10 |
Pb ppm | =<1 |
Ammonium(as NH4), % | =<0.01 |
Arsenic(as As) ppm | =<1 |
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