Diphosphorus Tetroxide from Germany
Diphosphorus tetroxide (P2O4), a white hygroscopic solid, serves as a phosphorylating agent. Under HTS 2811.19.61 as an other inorganic oxygen compound of phosphorus, it avoids 2812 carbon-specific halides. Used in flame retardants.
Duty Rate — Germany → United States
14.2%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Package under nitrogen to prevent hydrolysis to phosphorous acid
• Declare CAS 12136-78-6 and molecular formula for verification
• Separate from oxidizers in storage per NFPA codes