HS Code for Solid sodium hydroxide

Solid sodium hydroxide, commonly known as caustic soda, is classified under HS code 2815.11. This classification is found in Chapter 28, which encompasses inorganic chemicals, precious metals, and radioactive elements. Heading 2815 specifically covers sodium hydroxide (caustic soda), potassium hydroxide (caustic potash), and peroxides of sodium or potassium. The subheading 2815.11 is strictly for the solid form of sodium hydroxide. This includes the chemical in various dry states such as flakes, pellets, or fused masses. The classification is straightforward because the Harmonized System distinguishes between the pure solid chemical and its aqueous solutions. The solid form is highly hygroscopic and must be handled as a hazardous material, but for customs purposes, its physical state at room temperature is the primary determinant for this specific code. It is widely used in the manufacture of pulp and paper, textiles, drinking water, soaps, and detergents.

Products Included

• Caustic soda flakes
• Sodium hydroxide pellets
• Anhydrous sodium hydroxide
• Caustic soda pearls
• Fused sodium hydroxide masses

Common Misclassification

The most frequent misclassification is with HS code 2815.12, which is used for sodium hydroxide in aqueous solution (soda lye or liquid caustic soda). While the chemical composition is the same, the physical state (liquid vs. solid) requires a different subheading. Another error involves HS code 3824, which covers prepared binders for foundry moulds or chemical products not elsewhere specified. If the sodium hydroxide is part of a complex mixture or a prepared cleaning preparation, it may fall under Chapter 34 or 38 instead of the pure chemical code in Chapter 28.

FAQ

What is the HS code for solid sodium hydroxide?

The HS code for solid sodium hydroxide (caustic soda) is 2815.11.

One more relevant question

Does this code include liquid caustic soda? No, liquid sodium hydroxide in aqueous solution is classified under HS code 2815.12.