Barium Tungstate from Mexico
Barium tungstate (BaWO4) is used in X-ray contrast and ceramics, classified in HTS 2841.80.0050 for other tungstate salts. It adheres to definitions for metal tungstates excluding complex forms.
Duty Rate — Mexico → United States
5.5%
Rate breakdown
9903.05.860%Universal product exemption (U.S. note 52(b))
Import Tips
• Test for barium solubility to confirm tungstate vs other salts
• Hazard labeling for barium toxicity mandatory
• Exclude from 2836 if not peroxocarbonate