High-Purity Citric Acid for Metal Passivation from China
Ultra-pure citric acid (99.9%) for metal surface passivation in aerospace and medical device manufacturing under HTS 2918.14.00.00. Acts as eco-friendly replacement for nitric acid in stainless steel treatment. Chemically defined compound with no disqualifying modifications.
Duty Rate — China → United States
43.5%
Rate breakdown
9903.05.3112.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of China, as provided for in U.S. note 52 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
• ASTM A967 compliance cert required for passivation end-use; iron content <5ppm
• NSF/ANSI 61 certification for water contact applications
• Small batch imports—ensure lot traceability for quality systems like ISO 13485