High-Purity Citric Acid for Metal Passivation from Canada
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 — Canada → United States
16%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
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