Colloidal Silica Dispersion (50% Solids)
Colloidal silica dispersion with 50% solids, used in semiconductor polishing. It is silicon dioxide suspended in water, meeting Chapter 28 Note 1(b) for aqueous solutions.
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:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the dispersion contains additives for specific polishing uses
Prepared chemical products for specific uses may be classified in Chapter 38.
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
• Confirm the dispersion is in water, not other solvents, to stay within Chapter 28
• Provide stability data to the CBSA for classification
Related Products under Tariff item 2811.22.00
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Fumed Silica (Aerosil)
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High-Purity Silica Powder for LEDs
High-purity silica powder for LED phosphor production, with purity above 99.99%. It is a separate chemically defined compound of silicon dioxide.
High-Purity Synthetic Silica Gel for Chromatography
High-purity synthetic silica gel for chromatography, with controlled pore size. It is a separate chemically defined compound of silicon dioxide, suitable for laboratory use.
Indicator Silica Gel with Cobalt Chloride
Indicator silica gel impregnated with cobalt chloride for moisture detection. The base is synthetic silicon dioxide, and the cobalt chloride acts as a colouring substance for identification, per Chapter 28 Note 1(e).