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

Ammonium Iron(iii) Sulphate Solution R1
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Ammonium Iron( iii ) Sulphate Solution R1

Dissolve 0.2  g of ammonium iron( iii ) sulphate in 50  ml of water, add 5  ml of nitric acid and dilute to 100  ml with water.