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Sodium Bromide

Molecular formula:NaBr molecular weight:102.9
1.Uese:This product is used for making sensitive emulsion of photographic film and for making medicinal intermediates in medico-industries, e.g.diuretic,sedative etc. It is also used as bromide making complex material and complex dyes.
2.Standard :

item

Specification

Export Grade

Photo Grade

Appearance

White Crystal

White Crystal

Assay(as NaBr)% ≥

99

99.5

Degree of Clearance

To pass test

To pass test

Chloride(as CL)%≤

0.1

0.1

Sulphates(as SO4 )%≤

0.01

0.005

Bromates(as BrO3 )%≤

0.003

0.001

PH(10% solution at 25 degree C)

5-8

5-8

Moisture%

0.5

0.3

Lead(as Pb) %≤

0.0005

0.0003

Iodide(as I)%≤

 

0.006

Iron(as Fe)%≤

 

0.0002

Transmittance 5% at 410nm

 

93.0-100.0

Deoxidize experience(To KMnO4 )

 

The red unchanged above half hour

3. Shape and Properties: This product is white cubic crystal or white fine grain, belongs to regular system, white specific gravity 3.203 and melting point of 755℃, it is free of small and tastes salty and slightly bitter. It absorb water easily and agglomerates in the air, but does not deliquesce. It dissolves easily in water but slightly in alcohol. Its water solution is neutral and has electoconductibility.
4.Notification: It should be stored in ventilated and dry storehouses. It must be noted that the product guards against damp and keeps in dark place, the fire can be put out by water in case of fire.
5.Package: 25kg, 50kg, 500kg, 1000kg. Each by knitting bag with plastic inside.

Sodium Bromide Solutiom

Item

Specification

Appearance

Clear, colorless to pale yellow

Assay(as NaBr)%

45-47

PH

6-8

Turbidity(NTU)

≤2.5

Specific Gravity

1.470-1.520