Salt Cake By-Product from HCl Production
Crystalline salt cake generated as waste from the Mannheim process for hydrochloric acid manufacture from sodium chloride. This is disodium sulfate, a separate chemically defined compound.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
More Specific Codes
This product may fall under a more specific subheading:
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Verify the product is anhydrous disodium sulfate
• Classify under 2833.11.00
• Be prepared to show chemical analysis to CBSA
Related Products under Tariff item 2833.11.00
Anhydrous Sodium Sulfate
Pure disodium sulfate (Na2SO4) in anhydrous form, a chemically defined inorganic salt used in industrial processes. This falls under tariff item 2833.11.00 as disodium sulfate.
Glass Batch Salt Cake Additive
Granular salt cake incorporated into glass batch compositions as a fining agent and viscosity modifier. This technical grade disodium sulfate, known commercially as salt cake, is a separate chemically defined compound of Chapter 28.
Glass Manufacturing Sodium Sulfate
Calcined synthetic Na2SO4 flux for flat glass production, reducing melting point. This is a separate chemically defined compound of Chapter 28.
Industrial Salt Cake for Glass Manufacturing
Coarse-grained salt cake used primarily as a flux in flat glass production to lower melting temperatures of silica. This is a technical grade of disodium sulfate, a chemically defined inorganic compound.
Kraft Pulping Grade Salt Cake
Technical sodium sulfate (salt cake) used in sulfate pulp mills to regenerate cooking liquor during kraft paper production. This is a separate chemically defined compound of Chapter 28.
Laboratory Reagent Sodium Sulfate
ACS-grade disodium sulfate for analytical chemistry and water testing labs. This is a pure compound under Chapter 28, specifically disodium sulfate.