Water Treatment Quicklime
Fine-ground quicklime optimized for pH adjustment and softening in municipal water purification plants. It is mineral-derived quicklime, not a precipitated chemical, and grinding is a permitted mechanical process, so it is classified under 2522.10.00.
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 |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the product is chemically pure calcium oxide
Pure calcium oxide is in Chapter 28.
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
• Ensure the quicklime is not mixed with coagulants or other treatment chemicals
• Declare the particle size and purity
• Check if the product meets Canadian drinking water treatment standards
Related Products under Tariff item 2522.10.00
Agricultural Quicklime Soil Amendment
Agricultural quicklime in pebble form, produced by calcining limestone, used to correct soil pH and supplement magnesium in acidic farm fields. It is in the crude or processed state permitted by Chapter 25 and is not roasted, calcined beyond the heading's scope, or mixed, so it falls under tariff item 2522.10.00.
Chemical Manufacturing Quicklime
Technical grade quicklime in lump form, used as feedstock for producing calcium carbide and other organometallic compounds. It is obtained by calcining limestone and has not undergone processing beyond that allowed in Chapter 25, so it is classified as quicklime under 2522.10.00.
Construction Quicklime for Mortar
High-reactivity quicklime in pebble form, intended for slaking into lime putty for traditional masonry mortars and plasters. It is quicklime as defined in heading 25.22, not hydraulic or slaked lime, and is not processed beyond crushing or grinding, so it falls under 2522.10.00.
Gold Mining Quicklime
Lump quicklime used in gold mining cyanidation processes to provide alkaline conditions for ore processing. It is unhydrated quicklime derived from limestone calcination, with no processing beyond the mechanical processes allowed in Chapter 25, so it is classified under 2522.10.00.
Industrial Quicklime Powder
High-calcium quicklime in fine powder form, produced by calcining limestone and used in steelmaking for slag formation and impurity removal. It is quicklime under heading 25.22, and powdering is a permitted mechanical process, so it falls under 2522.10.00.
Metallurgical Grade Quicklime
Coarse quicklime lumps graded for use in blast furnaces and steel desulfurization processes. It is unslaked quicklime from high-purity limestone calcination, with no processing beyond crushing or sizing, so it is classified under 2522.10.00.