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Products

 potassium Bromide


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 :

Items

Photo First Grade

Photo Second Grade

Medical Grade

Main content

99.5% min

99.5% min

99.0% min

Loss on drying

0.3% max

0.3% max

0.5% max

Chloride

0.2% max

0.2% max

0.5% max

Bromide

0.001% max

0.003% max

0.005% max

Iodide

0.001%max

0.005% max

0.005% max

Sulfate

0.005%max

0.005% max

0.01% max

PH Value(5)

6.07.5

5.57.5

5.57.5

As

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≤0.0004

Pb

0.2ppm max

4ppm max

10ppm max

Fe

0.5ppm max

4ppm max

5ppm max

Cu

0.5ppm max

1.0ppm max

1ppm max

Bi

0.2ppm max

0.5ppm max

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Peroxide solution penetrability(250g/l)

93100(410nm)

85100(410nm)

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Transparency test

Qualified

Qualified

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Ammonia

15.0ppm max

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Peroxide solution chromaticity(250g/l)

(15.0 Black once)max

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Packing

PP bag with PE inner bag/fibre drum,25kgs per bag/drum

 

 

 

 

 

 

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