FORMING STABLE AQUEOUS SOLUTIONS OF STANNOUS COMPOUNDS

摘要

A method for the preparation of an aqueous stable premix containing a stannous ion releasing compound useful in the manufacture of an aqueous oral care composition containing a stable stannous ion releasing compound which comprises first dissolving the stannous compound in an aqueous solution of citric acid or its alkali metal salt to prepare the aqueous premix and then adding the premix to the vehicle of the oral care composition.