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Appearance
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White crystals or crystalline flakes ( turns pink on exposure to air and light)
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Colour
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Max 30 Hazen Units (50% solution in acetone)
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Clarity of solution
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5% w/w in DI water, clear and colourless
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Grain size
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1 to 30 mm, loose and detached crystals
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Purity (by GC)
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Min 99.5%
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Freezing point
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40.5 - 41°C
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Non - volatile matter
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Max 0.02%
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Chloride (Cl)
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Max 0.005%
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Iron (Fe)
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Max 0.0001%
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Lead (Pb)
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Max 0.0001%
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Water (by KF)
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Max 0.5%
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