Sodium bismuthate

Sodium bismuthate
Other names

Sodium bismuth oxide
Properties
Molecular formula NaBiO3
Molar mass 279.97 g/mol
Appearance Light brown powder
Solubility in water insoluble in cold, decomp. in hot water
Hazards
EU classification Harmful (Xn)
R-phrases R22, R36/37/38
S-phrases S26, S36
LD50 420 mg/kg (rat)
 Y (verify) (what is: Y/N?)
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

Sodium bismuthate, also known as sodium bismuth oxide, is a slightly hygroscopic chemical compound with the chemical formula of NaBiO3.[1]

Sodium bismuthate is an oxidizer. It is not soluble in cold water, but decomposes when placed in hot water.

4 NaBiO3 + 2 H2O → 4 NaOH + 2 Bi2O3 + 3 O2

It also decomposes when placed in acids. It is one of the few sodium compounds that do not dissolve in water.

Sodium bismuthate is commercially used in manganese testing[2].

References

  1. ^ "Sodium bismuthate". Mallinckrodt Baker. 06/19/07. http://hazard.com/msds/mf/baker/baker/files/s3026.htm. 
  2. ^ http://www.alfa.com/en/GP100w.pgm?DSSTK=033219