Aluminum Hydrogen Phosphate
Aluminum hydrogen phosphate (Al(H2PO4)3) functions as a reactive binder in acid-cured refractories and corrosion inhibitors. This acidic aluminum phosphate falls under HTS 2835.29.10.00. It provides chemical bonding at elevated temperatures.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If >85% phosphoric acid content
High-acid solutions classify as phosphoric acid, not metal phosphates.
If reaction products with silicates for foundry use
Catalyst support preparations fall under Chapter 38.
If of other metals like zinc aluminum phosphate
Mixed metal phosphates may classify differently by composition.
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• pH <2 requires corrosive labeling and secondary containment packaging
• Specify mono- vs di-hydrogen form in technical data sheet for accurate classification
• Avoid bulk packaging claims; verify container specifications match declaration
Related Products under HTS 2835.29.10.00
Varidol Aluminum Phosphate
Varidol is a commercial aluminum secondary phosphate solution used in sanitary ware casting and acid-resistant brick production. HTS 2835.29.10.00 applies to this chemically defined aluminum phosphate. It enables self-supporting green strength in ceramics.
Sodium Aluminum Phosphate
Sodium aluminum phosphate (Na3Al2H15(PO4)8) is a phosphate salt of aluminum used primarily as a food additive for leavening in baked goods like biscuits and self-rising flour. It falls under HTS 2835.29.10.00 as it is a chemically defined aluminum phosphate compound. This inorganic salt reacts with baking soda to release carbon dioxide for rising.
Aluminum Phosphate Gel
Aluminum phosphate gel (AlPO4·2H2O) is a colloidal suspension of aluminum phosphate used as a binder in refractory ceramics and catalyst supports. Classified under HTS 2835.29.10.00 as a chemically defined aluminum phosphate in gel form. It provides adhesion and thermal resistance in high-temperature applications.
Monoaluminum Phosphate Solution
Monoaluminum phosphate (Al(H2PO4)3) in aqueous solution serves as an acid binder for high-temperature refractories and acid-resistant coatings. It qualifies for HTS 2835.29.10.00 as a simple aluminum phosphate salt. The solution form facilitates application in ceramic and metal treatments.
Aluminum Orthophosphate Powder
Aluminum orthophosphate powder (AlPO4) is a white, thermally stable compound used in ceramic glazes, dental cements, and optical coatings. It is classified under HTS 2835.29.10.00 as a basic aluminum phosphate. The powder offers high purity for precision applications.
Food-Grade Aluminum Phosphate
Food-grade aluminum phosphate (E541) acts as an emulsifier, stabilizer, and anti-caking agent in processed cheeses and powdered foods. HTS 2835.29.10.00 covers this purified aluminum phosphate meeting food chemical codex standards. It prevents separation and improves texture.