Sodium bromide ( Nabr)

Specification:

Items   Industry Grade   Medicine Grade  Photo Grade
Appearance   White Crystals
Assay, %   99.0MIN   99.3MIN  99.5MIN
Chlorides, % 0.2 MAX   0.2 MAX  0.2 MAX
Sulphates, PPM 200 MAX   100 MAX  50 MAX
Loss on Drying, % 0.5 MAX   0.5 MAX  0.3 MAX
Heavy Metal(As Pb, Hg)PPM5.0 MAX 5.0 MAX  3.0 MAX
Arsenic, PPM 4.0 MAX   4.0 MAX  4.0 MAX
Volatile, %   ---   Qualified  0.5 MAX
Bromates, PPM Qualified   Qualified  10 MAX
Iodide, PPM ----   Qualified  50 MAX
Minor Elements, PPM ----   Qualified  0.5 MAX
PH Value Qualified   Qualified  6.0---8.0

Sodium bromide is used to prepare dense fluids used in oil wells.