Nickel Ammonium Sulfate from Mexico
Nickel ammonium sulfate ((NH4)2Ni(SO4)2·6H2O) is a double salt used in analytical chemistry and electroplating baths. It qualifies under HTS 2833.24.00.00 as a sulfate of nickel, per Chapter 28 rules allowing certain complex salts.
Duty Rate — Mexico → United States
3.2%
Rate breakdown
9903.05.860%Articles provided for in subdivision (b) of U.S. note 52 to this subchapter
Import Tips
• Submit chemical formula and CAS# (7786-81-4) in entry docs to affirm nickel sulfate classification over 2842
• For lab reagents, include quantity limits under lab chemical exemptions to reduce duties