HS Code for Sodium sulphate

Sodium sulphate is classified under HS code 2833.11. This code is situated in Chapter 28 (Inorganic chemicals) under heading 2833, which encompasses sulphates, alums, and peroxosulphates. Subheading 2833.11 is specifically allocated to disodium sulphate, the most common commercial form. The classification applies regardless of whether the product is in anhydrous form or hydrated form, such as the decahydrate known as Glauber's salt. The purity and method of production—whether as a byproduct of chemical processes like rayon manufacturing or through the processing of natural minerals—do not change the primary classification under 2833.11, provided the chemical identity remains disodium sulphate. This compound is a major commodity in the global chemical industry, primarily used as a filler in powdered home laundry detergents. It also plays a critical role in the Kraft process of wood pulp manufacture and in the glass industry to help remove small air bubbles from molten glass. The stability and non-reactive nature of the sulphate ion under standard conditions make it a predictable chemical for international trade classification. It is important to distinguish this inorganic salt from organic sulphates, which are classified in Chapter 29.

Products Included

• Anhydrous sodium sulphate
• Sodium sulphate decahydrate
• Glauber's salt
• Salt cake (crude sodium sulphate)
• Detergent grade sodium sulphate
• High-purity analytical grade disodium sulphate

Common Misclassification

Frequently confused with 2833.19, which covers other sodium sulphates such as sodium hydrogen sulphate (also known as sodium bisulphate). It should also not be confused with natural sodium sulphate under 2530.90 if it is traded as an unrefined mineral earth. Additionally, it is sometimes mistaken for sodium sulphite (2832.10) due to the similar name and appearance in powdered form.

FAQ

What is the HS code for sodium sulphate?

The correct HS code for disodium sulphate is 2833.11.

What is the difference between 2833.11 and 2833.19?

Code 2833.11 is for disodium sulphate, while 2833.19 is for other sodium sulphates like sodium acid sulphate (bisulphate), which has different chemical properties and industrial uses.