Sodium benzenesulfonate

Sodium benzenesulfonate is an organic compound with the formula C6H5SO3Na. It is white, water-soluble solid, It is produced by the neutralization benzenesulfonic acid with sodium hydroxide. It is also a common ingredient in some detergents. The compound typically crystallizes from water as the monohydrate.[1]

Sodium benzenesulfonate
Identifiers
3D model (JSmol)
ChemSpider
DrugBank
ECHA InfoCard 100.007.454
EC Number
  • 208-198-2
UNII
  • InChI=1S/C6H6O3S.Na/c7-10(8,9)6-4-2-1-3-5-6;/h1-5H,(H,7,8,9);/q;+1/p-1
    Key: MZSDGDXXBZSFTG-UHFFFAOYSA-M
  • C1=CC=C(C=C1)S(=O)(=O)[O-].[Na+]
Properties
C6H5NaO3S
Molar mass 180.15 g·mol−1
Appearance white solid
Melting point 450 °C (842 °F; 723 K) decomposition
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Heating this salt in strong base results in desulfonation, giving, after acid workup, phenol[2] This reaction was at one time, the principal route to phenol.

References
  1. Otto Lindner; Lars Rodefeld (2005). "Benzenesulfonic Acids and Their Derivatives". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a03_507.
  2. W. W. Hartman (1923). "p-Cresol". Organic Syntheses. 3: 37. doi:10.15227/orgsyn.003.0037.
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