HS Code for Sodium tungstate

Sodium tungstate is classified under HS code 2841.80. This classification falls under heading 2841, which encompasses salts of oxometallic or peroxometallic acids. The Harmonized System organizes these salts based on the metal present in the anion. Subheading 2841.80 is specifically allocated for tungstates (also known as wolframates). Sodium tungstate (Na2WO4) is the most common commercial form of these salts. The classification is determined by GRI 1 and GRI 6. GRI 1 directs us to the heading 2841 based on the chemical nature of the salt, and GRI 6 allows for the use of the specific subheading 2841.80 for tungstates. This product is primarily used as an intermediate in the recovery of tungsten from its ores and as a reagent in analytical chemistry. It is also used in the textile industry as a fireproofing agent and in organic chemistry as a catalyst for oxidation reactions. It is important to ensure the product is a separate chemically defined compound; if it were an ore or a concentrate, it would be classified in Chapter 26.

Products Included

• Sodium tungstate dihydrate
• Anhydrous sodium tungstate
• Sodium orthotungstate
• Technical grade sodium tungstate
• Sodium tungstate solution (pure)

Common Misclassification

Sodium tungstate (2841.80) is sometimes misclassified under 2841.90, which is the residual category for \"Other\" oxometallic salts. However, because tungstates are specifically named in subheading 2841.80, that code must take precedence. Another common error involves confusing sodium tungstate with tungsten ores or concentrates, which are classified under 2611.00. Ores are naturally occurring minerals, whereas sodium tungstate is a chemically processed salt. Additionally, sodium tungstate should not be confused with sodium molybdate (2841.70). While tungsten and molybdenum are in the same group of the periodic table and their salts have similar properties, the HS system provides distinct subheadings for each. Finally, if sodium tungstate is part of a prepared catalyst, it should be classified under heading 3815.

FAQ

What is the HS code for sodium tungstate?

The HS code for sodium tungstate is 2841.80, which covers tungstates (wolframates).

Is sodium tungstate dihydrate classified differently than the anhydrous form?

No, both the dihydrate and anhydrous forms of sodium tungstate are classified under HS code 2841.80 as they are both chemically defined tungstate salts.