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Appearance
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A white crystalline powder
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Assay (Titration after Ion exchange)
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Min 99%
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Absorption maxima (10% solution in water)
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at 220 nm
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Max 0.1
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at 230 nm
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Max 0.05
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at 240 nm
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Max 0.03
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at 250 nm
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Max 0.02
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at 500 nm
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Max 0.02
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Insoluble matter
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Passes filter test
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