Salts

Analytical-grade inorganic salts for preparing buffers, standard solutions, ionic media and complexing reagents: chlorides, sulfates, nitrates, phosphates, carbonates and acetates of sodium, potassium, ammonium, calcium, magnesium and the transition metals.

For salts, two figures on the certificate deserve close attention: water of crystallisation and trace-metal limits — both directly affect the true concentration of the prepared solution. See also Analytical Reagents.