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 |
|
