• British Pharmacopoeia Volume V
  • Appendices
  • Appendix I D. Buffer Solutions

Borate Buffer pH 9.6
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Borate Buffer pH 9.6 To 50 mL of a solution containing 0.6189 g of boric acid and 0.7456 g of potassium chloride add 36.85 mL of 0.2m sodium hydroxide VS and dilute with water to 200 mL.

At 20°, the solution may be used as a solution of standard pH.