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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
item	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


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