Example of primary standard.

1. Acid-Base reactions:

ü Na₂CO₃,

ü Na₂B₄O₇(Sodium tetrabromate),

ü KH(C₈H₄0₄) (Potassium hydrogen phthalate),

ü KH(I0₃)₂ (Potassium hydrogen iodate),

ü HCl,

ü C₆H₅COOH(Benzoic acid).

2. Complex formation reactions:

ü Ag,

ü AgNO₃,

ü NaCl,

ü Various metals (pure Zn, Mg, Cu, Mn) and their salts.

3.Precipitation reactions:

ü Ag,

ü AgNO₃,

ü NaCl,

ü KCl,

ü KBr.

4.Oxidation-reduction reactions:

ü K₂Cr₂O₇,

ü KbrO₃ (Potassium borate),

ü KIO₃,

ü KH(I0₃)₂ (Potassium hydrogen iodate),

ü Sodium Oxalate (Na₂C₂O₄),

ü Arsenic (׀׀׀) oxide(As₂O₃)