Zinc Formaldehyde Sulfoxylate Bleaching Powder

A dry powder formulation of zinc sulfoxylate formaldehyde (Zn(CHO)2SO2) mixed with stabilizers, used for bleaching and discharging in printing textiles and paper. Classified under HTS 3824.99.32.00 due to its sulfoxylate compound content in an inorganic mixture designed for industrial decolorization.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China6.5%+35.0%41.5%
🇲🇽Mexico6.5%+10.0%16.5%
🇨🇦Canada6.5%+10.0%16.5%
🇩🇪Germany6.5%+10.0%16.5%
🇯🇵Japan6.5%+10.0%16.5%

Alternative Classifications

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

2833.29Lower: 13.7% vs 41.5%

If primarily a single inorganic sulfoxylate salt

Pure inorganic sulfites, sulfoxylates and thiosulfates are covered in heading 2833, excluding formulated mixtures.

3824.99.39Lower: 35% vs 41.5%

If mixture of other inorganic compounds without hydrosulfite/sulfoxylate

General inorganic compound mixtures without specified hydrosulfite or sulfoxylate content fall under broader 3824.99.39 categories.

3215.90.10.00Lower: 38.1% vs 41.5%

If put up in forms for retail sale as printing ink accessory

Preparations used in printing inks or as ink accessories are directed to heading 3215 when packaged for immediate consumer use.

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Import Tips & Compliance

Label packages with exact sulfoxylate composition and hazard warnings per GHS

Common error: classifying as organic dye intermediate (3204)

Requires EPA TSCA notification if new chemical mixture

Related Products under HTS 3824.99.32.00

Sodium Hydrosulfite Dye Vat Discharge Agent

A chemical mixture containing sodium hydrosulfite (Na2S2O4) used in textile dyeing to discharge color from vat dyes, creating white patterns on indigo-dyed denim. This preparation falls under HTS 3824.99.32.00 as a mixture of hydrosulfite compounds with other inorganic substances for industrial textile processing.

Hydrosulfite-Sulfoxylate Textile Discharge Paste

Thickened paste combining sodium hydrosulfite and sodium formaldehyde sulfoxylate for screen printing discharge effects on fabrics. This dual-compound inorganic mixture is specifically classified under HTS 3824.99.32.00 for its hydrosulfite and sulfoxylate composition.

Industrial Sodium Dithionite Reducing Solution

Aqueous solution of sodium dithionite (hydrosulfite) with inorganic buffers for vat dyeing reduction in textile mills. Falls under HTS 3824.99.32.00 as a mixture of hydrosulfite compounds with other inorganic substances for chemical processing.

Sulfoxylate Bleach for Paper Manufacturing

Mixture containing sodium sulfoxylate with inorganic activators used in paper pulp bleaching processes to remove color impurities. Classified in HTS 3824.99.32.00 specifically for sulfoxylate compound mixtures in industrial applications.

Denim Discharge Printing Hydrosulfite Paste

Specialty paste of sodium hydrosulfite compounded with inorganic thickeners for creating white discharge prints on indigo denim fabric. This preparation qualifies under HTS 3824.99.32.00 as containing hydrosulfite compounds in mixture form.

Formaldehyde-Sulfoxylate Reducing Agent

Industrial reducing agent combining formaldehyde sulfoxylate with inorganic salts for leather dyeing and finishing processes. Covered by HTS 3824.99.32.00 for sulfoxylate-based inorganic compound mixtures.