Thorium Nitrate Crystals from China
Crystalline Th(NO3)4, a soluble salt of thorium used in chemical research and lantern mantles. Fits HTS 2844.30.20.50 as a thorium compound, per Chapter 28 notes on radioactive isotopes and their inorganic compounds.
Duty Rate — China → United States
0%
Rate breakdown
9903.05.860%Articles provided for in subdivision (b) of U.S. note 52 to this subchapter
Import Tips
• Provide material safety data sheet confirming chemical purity; comply with thorium exemption quantities under 10 CFR 40; label as UN 2972 hazardous material