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High-Test Calcium Hypochlorite (HTH) Powder

High-test (HTH) calcium hypochlorite powder at 90% purity for bleaching and sanitation in textile and paper industries. Directly matches HTS 2828.10.00.00 for commercial calcium hypochlorites as a defined inorganic compound. Supplied in industrial quantities.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China2.4%+35.0%37.4%
🇲🇽Mexico2.4%+10.0%12.4%
🇨🇦Canada2.4%+10.0%12.4%
🇩🇪Germany2.4%+10.0%12.4%
🇯🇵Japan2.4%+10.0%12.4%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

3808.92Lower: 15% vs 37.4%

If for wood preservation formulations

Specific end-use preservatives in 3808.

3204.12.50Higher: 41.5% vs 37.4%

If synthetic organic coloring matter with hypochlorite

Chapter 32 for coloring/bleaching prep if organic.

Not sure which classification is right?

Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.

Import Tips & Compliance

Lab certification for 90% purity required; hazmat training for handlers

Avoid: bulk storage near organics risking fire

Related Products under HTS 2828.10.00.00

Commercial Calcium Hypochlorite Granules 65%

Granular commercial calcium hypochlorite with 65% available chlorine, used primarily for swimming pool disinfection and water treatment. It falls under HTS 2828.10.00.00 as it is explicitly classified as commercial calcium hypochlorite, a bleaching and oxidizing agent meeting the chemical definition in Chapter 28. This form is stabilized for safe handling and storage in bulk packaging.

Calcium Hypochlorite Pool Shock Powder 70%

High-strength powdered calcium hypochlorite at 70% chlorine for shocking swimming pools to eliminate contaminants. Classified under HTS 2828.10.00.00 as a commercial calcium hypochlorite, distinct from household bleaches due to its formulation and strength. Packaged in moisture-resistant bags for retail water treatment.

Cal Hypo Tablets for Spa Sanitization

3-inch calcium hypochlorite tablets (65% chlorine) designed to dissolve slowly in spas and hot tubs for continuous sanitization. This product is classified in HTS 2828.10.00.00 as other calcium hypochlorites in commercial form, not as a finished preparation. Tablets provide controlled release to maintain safe water chemistry.

Bulk Calcium Hypochlorite Flakes 68%

Flake-form commercial calcium hypochlorite with 68% available chlorine, supplied in 50lb drums for industrial water purification. Falls squarely under HTS 2828.10.00.00 as a chemically defined calcium hypochlorite per Chapter 28 definitions. Used in large-scale treatment plants.

Stabilized Calcium Hypochlorite Briquettes

Briquetted calcium hypochlorite stabilized against decomposition, containing 70% chlorine for drinking water treatment. Classified under HTS 2828.10.00.00 as commercial/other calcium hypochlorites, provided stabilizers are inorganic per chapter notes. Briquettes facilitate easy dosing in municipal systems.