Pure compounds are those compounds that have single molecule in their composition. Addition of even a one more molecule makes it impure.
Example of pure compound is water and impure compound is glycerine (contains mixture of hydrocarbons).
Three commercial products having pure compounds with its list of ingredients are:-
1. Gatorade - water (H2O), sugar, dextrose, citric acid (C6H8O7), salt (NaCl), monopotassium phosphate (KH2PO4) and sucrose acetate isobutyrate (C40H62O19).
2. Smart Water - calcium chloride (CaCl2), magnesium chloride (MgCl2), and potassium bicarbonate (KHCO3).
3. Nestle's Pure Life's list - calcium chloride (CaCl2), sodium bicarbonate (NaHCO3) and magnesium sulfate (MgSO4).