Calcium Nitrite Corrosion Inhibitor from Canada
Calcium nitrite (Ca(NO2)2) solution or powder acts as a corrosion inhibitor for reinforced concrete, preventing steel rebar rust. It is classified in HTS 2834.10.5000 as an 'other' inorganic nitrite, chemically pure and not excluded as a Chapter 31 product or organo-compound. Primarily used in construction chemicals.
Duty Rate — Canada → United States
13.1%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Include end-use statements for construction to differentiate from fertilizers; test for heavy metal impurities
• Ensure packaging prevents moisture absorption that could affect classification purity
• Comply with EPA regulations on nitrite discharge if applicable