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ITEM | BP2011 | E331 | USP34 | FCC7 | TTCA ENTERPRISE SPEC |
CHARACTERS | COLORLESS OR WHITE CRYSTAL | ||||
LIGHT TRANSMITTANCE | / | ≥95% | |||
ASSAY | 99.0-101.0% | ≥99.0% | 99.0-100.5% | 99.0-100.5% | 99.8% |
WATER | 11.0-13.0% | ≤13.5% | 10.0-13.0% | 10.0-13.0% | 11.49% |
SULPHATE | ≤150ppm | / | / | / | ≤20ppm |
OXALATE | ≤300ppm | ≤100ppm | / | / | ≤20ppm |
CALCIUM | / | / | / | / | ≤20ppm |
HEAVY METALS | ≤10ppm | ≤5ppm | ≤10ppm | / | ≤1ppm |
IRON | / | / | / | / | ≤5ppm |
CHLORIDE | ≤50ppm | / | / | / | ≤5ppm |
ARSENIC | / | ≤1ppm | / | / | ≤0.1ppm |
MERCURY | / | ≤1ppm | / | / | ≤0.1ppm |
LEAD | / | ≤1ppm | / | ≤2ppm | ≤0.5ppm |
PH | / | 7.5-9.0 | / | / | 7.6-9.0 |






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