Sodium Bisulfate Tanning Pickling Agent from Mexico
Sodium bisulfate is used in the pickling stage of leather tanning to lower pH and prepare hides for chrome tanning, consisting entirely of inorganic substances. It fits HTS 3202.90.10.00 as an essential inorganic preparation in the pre-tanning sequence. This acid salt prevents hide putrefaction during processing.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Label containers specifically as 'leather pickling agent' to prevent reclassification as general acidulant
• Provide batch analysis certificates showing bisulfate content to confirm inorganic purity
• Comply with corrosive material shipping regulations (UN 2837) for safe transport