Sodium bromite

Sodium bromite IUPAC name Sodium bromite Other names Sodium bromate(III) Identifiers InChI InChI=1/BrHO2.Na/c2-1-3;/h(H,2,3);/q;+1/p-1 InChIKey NYCVSSWORUBFET-REWHXWOFAZ Standard InChI InChI=1S/BrHO2.Na/c2-1-3;/h(H,2,3);/q;+1/p-1 Standard InChIKey NYCVSSWORUBFET-UHFFFAOYSA-M CAS number [7486-26-2] EC number 231-290-9 ChemSpider 145143 Properties Chemical formula NaBrO2 Molar mass 134.89 g mol−1 Related compounds Other anions Sodium chlorite Other cations Lithium bromite Potassium bromite Other compounds Sodium bromide Sodium hypobromite Sodium bromate Sodium perbromate Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)

Sodium bromite trihydrate IUPAC name Sodium bromite — water (1/3) Identifiers Standard InChI InChI=1S/BrHO2.Na.3H2O/c2-1-3;;;;/h(H,2,3);;3*1H2/q;+1;;;/p-1 Standard InChIKey FRAKPAVZKUGWSR-UHFFFAOYSA-M EC number 231-290-9 Properties Chemical formula NaBrO2·3H2O Molar mass 188.94 g mol−1 Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)

Sodium bromite, NaBrO₂, is formally the sodium salt of bromous acid. It is prepared by the controlled disproportionation of sodium hypobromite at pH 11–12 and 0 °C, and is commercially available as a 10% aqueous solution or as a solid trihydrate. It is used as a desizing agent in the textile industry.

Notes and references

Further reading

• Levason, William; Ogden, J. Steven; Spicer, Mark D.; Webster, Michael; Young, Nigel A. Characterization of sodium bromite by x-ray crystallography and bromine K-edge EXAFS, IR, Raman, and NMR spectroscopies. J. Am. Chem. Soc. 1989, 111 (16), 6210–12. DOI: 10.1021/ja00198a035.