Ammonium perrhenate
Salts of oxometallic or peroxometallic acids: > Other: > Ammonium perrhenate
Duty Rate (from China)
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)
Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Products classified under HTS 2841.90.20.00
Ammonium Perrhenate (NH4ReO4) Powder
Ammonium perrhenate is the ammonium salt of perrhenic acid, a peroxometallic acid, classified under HTS 2841.90.20.00 as a specific salt of oxometallic or peroxometallic acids. It appears as a white crystalline powder primarily used as a precursor in rhenium metal production.
High-Purity Ammonium Perrhenate for Superalloy Production
This high-purity grade (>99.99% Re) ammonium perrhenate serves as the key raw material for producing rhenium powder used in nickel-based superalloys for turbine blades. It falls under HTS 2841.90.20.00 due to its specific chemical definition as the ammonium salt of perrhenic acid.
Technical Grade Ammonium Perrhenate 99.5% Re
Technical grade ammonium perrhenate with 99.5% rhenium content is used in petroleum reforming catalysts and alloy production. Classified specifically under HTS 2841.90.20.00 as the ammonium salt within salts of oxo- or peroxometallic acids.
Ammonium Perrhenate Catalyst Precursor Flakes
Flake-form ammonium perrhenate designed for conversion to Re2O7 in catalyst manufacturing for hydrocracking. Its chemical definition as NH4ReO4 places it squarely under HTS 2841.90.20.00.
Research Grade Ammonium Perrhenate 99.99% Pure
Ultra-high purity ammonium perrhenate for scientific research and rhenium thin film deposition. Meets Chapter 28 Note 1 criteria for chemically defined compounds, thus HTS 2841.90.20.00.