Potassium Sodium Sulfite
Mixed potassium sodium sulfite (KNaSO3) double salt for textile bleaching. Classified under HTS 2832.20.00.00 per Chapter Note 5 on complex salts unless specifically in 2842.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If predominantly sodium sulfite
Predominant component determines principal classification.
If as true double complex salt
Chapter notes direct certain complex salts to 2842.
If sodium sulfite silicate
Silicates excluded from simple sulfites.
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Import Tips & Compliance
• Complex salt status confirmed via XRF analysis; ambiguous to 2842
• Textile chemical regs require REACH-like documentation
• Avoid moisture; deliquescent nature changes weight declarations
Related Products under HTS 2832.20.00.00
Sodium Sulfite Anhydrous
Sodium sulfite (Na2SO3) in anhydrous form is a white crystalline powder used as a reducing agent and preservative. It falls under HTS 2832.20.00.00 as one of the 'other sulfites' excluding sodium and potassium sulfites, which are specified separately in the tariff schedule.
Ammonium Sulfite Solution 40%
A 40% aqueous solution of ammonium sulfite ((NH4)2SO3) used in wastewater treatment and as an oxygen scavenger. Classified under HTS 2832.20.00.00 as an 'other sulfite' of an inorganic base, meeting Chapter 28 definitions for chemically defined compounds.
Zinc Sulfite Powder
Zinc sulfite (ZnSO3) powder used in specialty chemical synthesis and as a corrosion inhibitor. It qualifies under HTS 2832.20.00.00 as a sulfite of an inorganic base (metal salt), distinct from chromates or other excluded compounds.
Calcium Sulfite Hemihydrate
Calcium sulfite hemihydrate (CaSO3·0.5H2O), a white powder byproduct from flue gas desulfurization, used in construction materials. Falls under HTS 2832.20.00.00 as an 'other sulfite' chemically defined per Chapter 28 Note 1.
Magnesium Sulfite Tribasic
Tribasic magnesium sulfite (Mg3(SO3)2) used in pharmaceutical buffering and flame retardants. Classified in HTS 2832.20.00.00 as a chemically defined sulfite salt of an inorganic base.
Ferrous Sulfite Crystals
Ferrous sulfite (FeSO3) crystals employed in analytical chemistry and reducing applications. Meets HTS 2832.20.00.00 criteria as an 'other sulfite' of iron, chemically defined inorganic compound.