Sodium Formaldehyde Sulfoxylate 99% Pure Crystals
High-purity 99% crystalline sodium formaldehyde sulfoxylate used in chemical synthesis and as a bleaching assistant in paper manufacturing. It is explicitly covered by HTS 2831.10.1000 as sodium formaldehyde sulfoxylate, a sulfoxylate of sodium per Chapter 28 provisions. The compound's role as an organic-stabilized reducing agent confirms its placement.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If treated as a thiosulfate derivative
Sodium thiosulfate falls in 2832; structural similarity could lead to debate without clear sulfoxylate confirmation.
If classified as organo-sulfur compound
Organo-inorganic hybrids excluded from Chapter 28 per notes go to Chapter 29 headings.
If sold in retail packs under 1kg
Retail-packaged chemical specialties are directed to 3824 preparations.
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Import Tips & Compliance
• Include detailed chemical formula (CH3NaO4S·2H2O) and CAS number (149-28-0) on shipping docs for verification
• Watch for moisture content affecting stability; declare properly to avoid 'preparation' misclassification
Related Products under HTS 2831.10.10.00
Sodium Formaldehyde Sulfoxylate Dihydrate Powder
A white crystalline powder, chemically known as sodium formaldehyde sulfoxylate dihydrate (NaHSO2·CH2O·2H2O), used as a reducing agent in textile dyeing and bleaching processes. It falls under HTS 2831.10.1000 as it is specifically the sodium formaldehyde sulfoxylate variant of sodium sulfoxylates, stabilized with organic substances per Chapter 28 notes. This compound acts as a discharge agent for color removal in printing.
Rongalite C Technical Grade
Technical-grade Rongalite C, a commercial form of sodium formaldehyde sulfoxylate, supplied as free-flowing white powder for industrial vat dyeing. Classified under HTS 2831.10.1000 as the specific sodium formaldehyde sulfoxylate, fitting Chapter 28's dithionites/sulfoxylates stabilized with organics. Essential for reducing vat dyes like indigo in denim production.
Textile Dyeing Rongalite Auxiliary Chemical
Specialty Rongalite formulation for textile printing paste discharge, chemically sodium formaldehyde sulfoxylate in powdered form. Precisely matches HTS 2831.10.1000 description for sodium formaldehyde sulfoxylate within sulfoxylates of sodium. Used to create white discharge effects on dyed fabrics.
Industrial Sodium Hydrosulfite Substitute Rongalite
Rongalite powder serving as a stable alternative to sodium hydrosulfite in bleaching and dechlorination processes for pulp and textiles. HTS 2831.10.1000 applies directly as sodium formaldehyde sulfoxylate, distinguished from dithionites in the same heading. Its formaldehyde stabilization qualifies it under Chapter 28's specific inclusions.