Anhydrous Sodium Metasilicate
Anhydrous sodium metasilicate (Na2SiO3) is the water-free powdered form of this commercial alkali metal silicate, explicitly covered by HTS 2839.11.00.00. It serves as a key ingredient in heavy-duty detergents and industrial cleaners due to its high pH and emulsifying capabilities.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If it is sodium metasilicate specifically formulated as a solid for retail sale
Solid forms prepared for retail cleaning uses are separated into subheading 2839.12.
If borosilicate rather than pure metasilicate
Borates and borosilicates are classified under heading 2840 for boron compounds.
If used as a refractory binder in industrial mixtures
Refractory cements containing silicates fall under 3816 when prepared for such uses.
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Import Tips & Compliance
• Provide SDS and chemical composition data to customs for verification as a pure inorganic silicate
• Package in moisture-proof bags to prevent hydration during transit, maintaining anhydrous classification
• Check for anti-dumping duties if sourced from certain countries; file correct entry summary
Related Products under HTS 2839.11.00.00
Sodium Metasilicate Pentahydrate
Sodium metasilicate pentahydrate (Na2SiO3·5H2O) is a hydrated form of sodium metasilicate, a granular or powdered inorganic compound classified under HTS 2839.11.00.00 as a commercial sodium silicate. It is widely used in industrial cleaning formulations for its alkaline and buffering properties.
PQ Sodium Silicate Solution (Metasilicate Grade)
PQ Sodium Silicate is a liquid metasilicate solution (Na2O·xSiO2) produced commercially as a key sodium silicate under HTS 2839.11.00.00. It functions as a corrosion inhibitor in cooling systems and a binder in adhesives.
Sodium Metasilicate Nonahydrate Crystals
Sodium metasilicate nonahydrate (Na2SiO3·9H2O) appears as free-flowing white crystals, a hydrated commercial sodium silicate under HTS 2839.11.00.00. Commonly used in laundry powders and metal cleaning compounds.
Metso Beads Sodium Metasilicate
Metso Beads are dense, bead-form sodium metasilicate anhydrous product under HTS 2839.11.00.00, designed for easy handling in detergent manufacturing. Its low dust and high solubility make it ideal for industrial formulations.
Liquid Sodium Metasilicate 50% Solution
A 50% aqueous solution of sodium metasilicate, classified as a commercial sodium metasilicate under HTS 2839.11.00.00. Utilized in pulp and paper processing as a defoamer and alkaline agent.
Sodium Metasilicate for Welding Flux
High-purity sodium metasilicate powder used in welding flux formulations, falling under HTS 2839.11.00.00 as a commercial alkali silicate. It provides slag-forming and cleaning properties during welding.