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Appearance
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White to off -white powder
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Identity (UV/VIS spectrum)
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Passes test
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Absorption maxima (buffer pH 2.5)
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290 - 291 nm
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Specific absorptivity A 1%/1cm (λmax; 0.005%; buffer pH 2.5; calculated on dried substance)
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100 - 125
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Water (by KF)
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4.5 - 6.5 %
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Suitability (as indicator for metal titration)
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Passes test
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