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

Ammonium Iron(iii) Sulfate Solution R2
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Ammonium Iron(iii) Sulfate Solution R2 Ferric ammonium sulfate solution R2, ferric ammonium sulphate solution R2, ammonium iron(iii) sulfate solution R2

A 10% w/v solution of ammonium iron(iii) sulfate. If necessary, filter before use.

Produces a deep red colour with ammonium thiocyanate in acid solutions.