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Appearance
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A clear, colorless to pale yellow liquid, which becomes brown on storage
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Specific gravity
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1.5000 g
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Assay (alkalimetric)
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47 - 49%
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Arsenic (As)
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Max 0.00005%
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Chloride (Cl)
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Max 0.05%
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Heavy metal (as Pb)
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Max 0.0005%
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Iodide (I)
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Passes test (approx.0.003%)
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Iron (Fe)
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Max 0.0001%
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Organic substances
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Passes test
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Phosphate (PO4)
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Max 0.003%
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Residue on ignition
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Max 0.003%
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Selenium (Se)
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Passes test (approx.0.01 ppm)
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Sulphate and Sulphite (as SO4)
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Max 0.003%
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