Sodium Bromate
1.Uses:This product is a strong oxidant, mainly used as printing anddyeing auxiliary,hair-permagent,chemical agent,or gold solvent in gold mines when used with sodium bromide.
2.Standard: Item
Index
high-grade first-grade
Content(calculated with NaBrO3)%? 99.7 99.5 99.0
PH value(5w/v) 6.5±1 6.5±1 6.5±1
Light absorbency(20% solution)%? 0.12 ---- ----
Water %? 0.1 0.1 0.2
Nromide(calculated with NaBr) %? 0.05 0.05 0.1
Sulphate(calculated with SO4 %? 0.01 0.01 0.02
Iron(Fe) %? 0.0005 ---- ----
Arsenic(As) %? 0.0002 0.0002 0.0003
Chloride and chlorate(with C1)%? 0.05 0.03 0.1
Heavy metal (calculated with Pb)%? 0.0005 0.0005 0.001
3.Shape and Properties:This product is white crystal or?powder,withdensity (7.5°C/4.0°C)3.339 and melting point at 381°C (decomposed).Its water solubility is 37.4g at 25°C,90.9g at 100°C.It does not dissolve in alcohol.
4.Notification: This product is a trong oxidant, with oxdizing grade of 5.1 and UN Dangerous Articles Standard NO:1494.It burns when fricted or bumped.It becomes flammable and may explode when mixed with sulphur, carbon and metal powder. It reacts strongly with strong acid. It should be stored in dry,cool and well-ventilated places,keeping away from ammonide compounds and sulphuric acid solution.
5.Package:25kg or 50kg each,packed by cardboard buckets lined with polyethylene bag inside.