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intro:
Molecular formula: KBr
CAS No.: 7758-02-3
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Items
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Photo First Grade
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Photo Second Grade
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Medical Grade
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Main content
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99.5% min
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99.5% min
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99.0% min
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Loss on drying
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0.3% max
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0.3% max
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0.5% max
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Chloride
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0.2% max
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0.2% max
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0.5% max
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Bromate
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0.001% max
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0.003% max
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0.005% max
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Iodide
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0.001%max
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0.005% max
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0.005% max
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Sulphate
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0.005%max
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0.005% max
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0.01% max
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PH Value(5 ге )
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6.0—7.5
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5.5—7.5
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5.5—7.5
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As
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—
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—
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≤0.0004 ге
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Pb
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0.2ppm max
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4ppm max
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10ppm max
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Fe
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0.5ppm max
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4ppm max
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5ppm max
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Cu
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0.5ppm max
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1.0ppm max
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1ppm max
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Bi
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0.2ppm max
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0.5ppm max
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—
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Peroxide solution penetrability(250g/l)
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93 бл 100
(410nm)
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85 бл 100(410nm)
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—
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Transparency test
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Qualified
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Qualified
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—
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Ammonia
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15.0ppm max
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—
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—
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Peroxide solution chromaticity(250g/l)
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(15.0 Black once)max
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—
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—
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Packing
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PP bag with PE inner bag/fibre drum,25kgs per bag/drum
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