Executive Standard : in line with national pharmacopoeia standards (2010 version)
Properties : colorless cubic crystals and powder. Odorless, tastes salty and bitter. It has moisture absorbing properties, absorbs water and clots in humid air.
Packing : Cardboard drum lined with plastic bag, 25KG/drum.
Properties : white crystal or granules. Odorless, salty and bitter. Deliquescent. Iodine is gradually precipitated in air and aqueous solution to turn yellow or brown. 1 g was dissolved in 0.5 ml of water, about 2 ml of ethanol, 1 ml of glycerol, and dissolved in acetone. It can be dissolved in its own crystal water by heating to 64.3 °C.
Storage : Sealed and stored in the dark.
Uses : A small amount of ruthenium, platinum and rhodium. A cosolvent for iodine. Photo.
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Quality inspection item
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Index value
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Alkalinity (as OH-) / (mmol / 100g)
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≤0.4
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Ba,%
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≤0.001
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Iodate (IO3)
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qualified
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Clarity test
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qualified
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Heavy metal (in Pb), %
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≤0.0005
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Calcium and magnesium (calculated as Ca), %
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≤0.005
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Nitrogen compound (N), %
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≤0.002
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Content (NaI), %
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≥99.0
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Iron (Fe), %
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≤0.0005
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Thiosulfate (S2O3)
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qualified
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Sulfate (SO4), %
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≤0.01
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Phosphate (PO4), %
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≤0.005
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Chloride and bromide as Cl), %
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≤0.03
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