Harmonized System
Section VI > Chapter 28 > Heading 2815 > 2815.1
Sodium hydroxide (caustic soda)
Section VI > Chapter 28 > Heading 2815 > 2815.1 > 2815.12
In aqueous solution (soda lye or liquid soda)
Section VI > Chapter 28 > Heading 2815 > 2815.20
Potassium hydroxide (caustic potash)
Section VI > Chapter 28 > Heading 2815 > 2815.30
Peroxides of sodium or potassium
Section VI > Chapter 28 > Heading 2816
Hydroxide and peroxide of magnesium; oxides, hydroxides and peroxides, of strontium or barium.
Section VI > Chapter 28 > Heading 2816 > 2816.10
Hydroxide and peroxide of magnesium
Section VI > Chapter 28 > Heading 2816 > 2816.40
Oxides, hydroxides and peroxides, of strontium or barium
Section VI > Chapter 28 > Heading 2817
Zinc oxide; zinc peroxide.
Section VI > Chapter 28 > Heading 2817 > 2817.00
Zinc oxide; zinc peroxide