• British Pharmacopoeia Volume V
  • Appendices
  • Appendix I A. General Reagents

Sodium Heptanesulfonate Monohydrate

Sodium Heptanesulfonate Monohydrate 1-Heptanesulfonic acid sodium salt monohydrate, 1-heptanesulphonic acid sodium salt monohydrate, sodium heptanesulphonate monohydrate; C7H15NaO3S,H2O = 220.3

Chromatographic reagent grade of commerce containing not less than 96.0% of C7H15NaO3S, calculated with reference to the anhydrous substance.

Complies with the following tests.

Water Not more than 8%, Appendix IX C. Use 0.3 g.

Assay Dissolve 0.15 g in 50 mL of anhydrous acetic acid and carry out Method I for non-aqueous titration, Appendix VIII A, determining the end point potentiometrically. Each mL of 0.01m perchloric acid VS is equivalent to 20.22 mg of C7H15NaO3S.