Sodium Formaldehyde Sulfoxylate from Canada
Sodium formaldehyde sulfoxylate (NaHSO2·CH2O) is a sulfoxylate reducing agent used in polymerizations and dye discharge printing. Classified in HTS 2831.90.00.00 as 'other' sulfoxylates when meeting inorganic compound criteria despite formaldehyde association. Technical grade powder or dihydrate form common.
Duty Rate — Canada → United States
15.5%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Distinguish from Rongalite C (stabilized form) via molecular analysis for correct subheading
• Store refrigerated; import with validity date <6 months from manufacture
• REACH registration required for EU re-export; provide exposure scenarios