Sodium hydroxide (Caustic soda); potassium hydroxide (Caustic potash); peroxides of sodium or potassium
5 declarable lines
Heading 2815 covers sodium hydroxide (caustic soda), potassium hydroxide (caustic potash), and the peroxides of sodium or potassium. It is split by chemical and, for the hydroxides, by physical form: solid versus aqueous solution. The two hydroxide families enter free, while the peroxides carry a 3.7% general (MFN) rate.
Products in this heading
- Caustic soda flakes (solid sodium hydroxide)
- Caustic soda pearls or granules
- Liquid soda lye, a water solution of sodium hydroxide
- Caustic potash flakes (solid potassium hydroxide)
- Potassium hydroxide solution
- Sodium peroxide
- Potassium peroxide
How to choose the right subheading
- Chemical identity: sodium hydroxide, potassium hydroxide, or a peroxide of sodium or potassium.
- For sodium hydroxide, whether the goods are solid or in aqueous solution.
- For potassium hydroxide, whether the goods are in solid form or another form such as a solution.
- For peroxides, the peroxide line applies regardless of form.
Often confused with
- Heading 2828Sodium hypochlorite (liquid bleach)
Hypochlorites are classified in heading 2828, not with the hydroxides.
- Heading 2836Sodium carbonate (soda ash)
Carbonates fall in heading 2836.
- Heading 2816Magnesium hydroxide
Heading 2816 covers hydroxide and peroxide of magnesium.
- Heading 2825Lithium hydroxide
Other metal hydroxides and peroxides are grouped in heading 2825.
Frequently asked questions
What is the HTS code for solid caustic soda?
Solid sodium hydroxide is classified under 2815.11.00.00, with a general (MFN) rate of Free.
What is the duty on sodium hydroxide in aqueous solution?
Sodium hydroxide in aqueous solution (soda lye or liquid soda) enters under 2815.12.00.00 at a general (MFN) rate of Free.
How do I classify peroxides of sodium or potassium?
Peroxides of sodium or potassium are classified under 2815.30.00.00, which carries a general (MFN) rate of 3.7%. Solid potassium hydroxide goes under 2815.20.00.50 and other potassium hydroxide under 2815.20.00.90, both at a general (MFN) rate of Free.
Guide written from the official schedule text. Rates quoted are general (MFN) rates; check the line page for trade agreement rates and the classification of your exact product.