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Appearance
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White crystalline powder or crystals or chunks
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Appearance of solution (10% in water)
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Clear & colourless
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Assay (complexometric)
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Min. 99.0%
|
|
Heavy metal (as Pb)
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Max. 0.05%
|
|
Substance not precipitated by dilute H2SO4 (as SO4)
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Max. 0.1%
|
|
Iron (Fe)
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Max. 0.001%
|