Laboratory Grade Mercury from China
ACS reagent grade mercury for analytical chemistry and laboratory thermometers, under HTS 2805.40.00.00 as elemental mercury. Supplied with lot-specific certificates of analysis guaranteeing trace metal purity. Essential for barometers and manometers.
Duty Rate — China → United States
39.2%
Rate breakdown
9903.05.3112.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of China, as provided for in U.S. note 52 to this subchapter
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Import Tips
• Include end-user statements from accredited labs/universities to demonstrate legitimate research purposes
• Batch documentation must specify density (13.534 g/cm³) and surface tension values for quality verification
• Avoid generic 'chemical' declarations; specify 'mercury, elemental' to prevent hold at customs