Ammonium chloridePuriss. p.a., ACS Reagent, Reag. ISO, Reag. Ph. Eur., ?99.5%

Sodium carbonatePuriss. p.a., ACS Reagent, Reag. ISO, Reag. Ph. Eur., anhydrous, ?99.8% (calc. to the dried substance)

Paraformaldehyde, meets analytical specification of DAC, 95.0-100.5%

Potassium iodide Puriss. p.a., Reag. ISO, Reag. Ph. Eur., ?99.5%