Reagents

• Sodium sulphate decahydrate
• Sodium sulphate, "Pure" (P) "Proanalysi" (P.A.) and "Chemically pure" (CH.P.)
• Sodium sulphite, "Pro analysi" (P.A.),"Pure" (P)
• Sodium thiosulphate pentahydrate "Pure" (P)"Pro analysi" (P.A.)
• Magnesium sulphate heptahydrate
• Barium sulphate
• Barium hydroxide octohydrate