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

Sodium Hydroxide Solution
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Sodium Hydroxide Solution Dissolve 20.0 g of sodium hydroxide in water and dilute to 100.0 mL with the same solvent. Verify the concentration by titration with 1 M hydrochloric acid, using methyl orange solution as indicator, and adjust if necessary to 200 g/L.