50% Sodium Hydroxide Aqueous Solution from Canada

A 50% concentration aqueous solution of sodium hydroxide, commonly known as liquid caustic soda or soda lye, used in industrial processes like paper manufacturing and soap production. It falls under HTS 2815.12.00.00 as it is chemically defined sodium hydroxide explicitly in aqueous solution form. This subheading covers all concentrations of soda lye, distinguishing it from solid forms.