Ammonium Bifluoride from Canada
Ammonium bifluoride (NH4HF2) is a complex fluorine salt used as a cleaning agent, etchant for glass and metal etching. It qualifies for HTS 2826.90.90 as 'other complex fluorine salts' since it is not a simple fluoride. This hazardous crystalline material requires careful handling.
Duty Rate — Canada → United States
3.1%
Rate breakdown
9903.05.860%Universal product exemption (U.S. note 52(b))
Import Tips
• Classify as UN 1727 hazardous material for transport; provide neutralization procedures in SDS; ensure importer has proper waste handling permits