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

Sulphomolybdic Reagent R3
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Sulphomolybdic Reagent R3 Dissolve, with heating, 2.5  g of ammonium molybdate in 20  ml of water. Separately, with care, add 28  ml of sulphuric acid to 50  ml of water and cool. Mix the two solutions and dilute to 100  ml with water.

Store in a polyethylene container.