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potassium Bromide
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Potassium Bromide is used to photographic emulsions and developers, pharmaceutical industry, and also as nerve sedative in medicine.
Molecular formular:BrK
Molecular Weight:119
CAS:7758-02-3
Potassium Bromide
Specification :
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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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Bromide
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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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Sulfate
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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)
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6.07.5
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5.57.5
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5.57.5
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As
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-----
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≤0.0004
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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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Peroxide solution penetrability(250g/l)
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93100(410nm)
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85100(410nm)
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Transparency test
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Qualified
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Qualified
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Ammonia
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15.0ppm max
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Peroxide solution chromaticity(250g/l)
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(15.0 Black once)max
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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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