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

2-Naphthol Solution
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2-Naphthol Solution Dissolve 5  g of 2-naphthol , freshly recrystallised, in 40  ml of 2m sodium hydroxide and add sufficient water to produce 100  ml.

Prepare immediately before use.