Ammonium Bifluoride from United States
Ammonium bifluoride (NH4HF2) is a complex fluorine salt used as a cleaning agent, etchant for glass and metal etching. It qualifies for tariff item 2826.90.00 as an 'other' complex fluorine salt since it is not a simple fluoride. This product meets Chapter 28 Note 1 criteria as a separate chemically defined compound.
Duty Rate — United States → Canada
0%
Import Tips
• Confirm the product is not put up in measured doses for retail sale, as Section VI Note 2 could redirect classification
• Provide the chemical formula and purity to the CBSA
• If used as an etchant, ensure it is not mixed with other acids that could change classification