Magnesium Aluminosilicate
Magnesium aluminosilicates are pharmaceutical excipients and antacids. They classify under 2842.90.90 as aluminosilicates of inorganic acids.
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More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If sulfate-based magnesium salts
Material composition shift from silicate to sulfate changes heading.
If for retail pharmaceutical preparations
Finished dosage forms go to Chapter 30 vs bulk chemicals.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Provide USP/NF certificate for pharmaceutical grade
• Ensure GMP sourcing documentation
• Test for microbial contamination pre-shipment
Related Products under HTS 2842.90.90
Sodium Thiocyanate
Sodium thiocyanate (NaSCN) is an inorganic salt of thiocyanic acid, used in chemical synthesis, photography, and as a reagent in analytical chemistry. It falls under HTS 2842.90.90 as a salt of an inorganic acid (thiocyanic acid) that is not specifically excluded or covered elsewhere in heading 2842.
Potassium Thiocyanate
Potassium thiocyanate (KSCN) serves as a source of thiocyanate ions in chemical reactions, electroplating, and corrosion inhibition. Classified in 2842.90.90 as an 'other' salt of inorganic thiocyanic acid, distinct from azides or specifically named salts.
Barium Thiocyanate
Barium thiocyanate is a soluble inorganic salt employed in pyrotechnics and analytical reagents. It qualifies for HTS 2842.90.90 as an other salt of thiocyanic acid, excluding azides.
Zinc Silicate Aluminosilicate
Synthetic zinc silicate aluminosilicates are used as molecular sieves and catalysts in industrial processes. They fall under 2842.90.90 explicitly as aluminosilicates whether or not chemically defined, per the subheading.
Sodium Aluminosilicate Zeolite
Sodium aluminosilicate zeolites function as detergents builders and water softeners. Classified in 2842.90.90 as aluminosilicates, chemically defined or not, used in non-glass applications.
Ammonium Peroxosulfate
Ammonium peroxosulfate (NH4)2S2O8 is an oxidizing salt used in etching and polymerization. It imports under 2842.90.90 as other salts of peroxoacids (peroxosulfuric acid).