Copper Sulfate Pentahydrate Crystals from Mexico
Copper sulfate pentahydrate (CuSO4·5H2O), known as blue vitriol, is used in agriculture as a fungicide and in electroplating, classified in HTS 2833.29.51.90 as other sulfates. Its defined chemical structure as a copper salt confirms Chapter 28 placement.
Duty Rate — Mexico → United States
3.7%
Rate breakdown
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Include REACH or TSCA certification for chemical registration in the U.S
• Label with GHS pictograms for corrosive properties and proper PPE requirements
• Specify crystal size (e.g
• large technical grade) to avoid confusion with fine powder forms