Anhydrous Sodium Perborate
Anhydrous sodium perborate is the dehydrated form (NaBO3) used in high-performance bleaching formulations where water content must be minimized. It is specifically classified under HTS 2840.30.0010 as a peroxoborate (perborate), meeting the chemical definition for inorganic peroxy compounds in Chapter 28.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If purely potassium or sodium hydroxide without boron
Chapter notes exclude non-specified metal oxides; perborates are distinctly boron-based peroxy salts.
If sold as bleaching additive mixture for retail textile cleaning
Retail-packaged chemical preparations for specific uses fall under 3824, not as individual chemically defined compounds.
If synthetic organic coloring matter with perborate as auxiliary
Dispersions with perborates for pigments shift to Chapter 32 based on principal synthetic organic content.
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Import Tips & Compliance
• Confirm anhydrous status with differential scanning calorimetry (DSC) data, as hydrated forms have different densities and handling
• Store and ship under inert atmosphere to prevent decomposition; declare as oxidizer Class 5.1
Related Products under HTS 2840.30.00.10
Sodium Perborate Monohydrate
Sodium perborate monohydrate (NaBO3·H2O) is a white, odorless powder used primarily as an oxidizing agent and bleaching agent in detergents and cleaning products. It falls under HTS 2840.30.0010 as it is a chemically defined peroxoborate (perborate) of sodium, explicitly classified in the borates subheading for peroxoborates.
Sodium Perborate Tetrahydrate
Sodium perborate tetrahydrate (NaBO3·4H2O), often called 'gem clips' in industry, is an anhydrous white crystalline powder that releases hydrogen peroxide in water for bleaching applications. Classified under HTS 2840.30.0010 as a peroxoborate of sodium per Chapter 28 notes for inorganic oxygen compounds.
Technical Grade Sodium Perborate
Technical grade sodium perborate is a high-purity (95-99%) powder for industrial bleaching in paper and textile processing. It qualifies for HTS 2840.30.0010 as chemically defined sodium peroxoborate per Chapter 28 definitions, excluding organo-inorganic mixtures.