Sodium Bisulfate Tanning Pickling Agent from China
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 — China → United States
35%
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
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
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