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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If ratio indicates orthosilicate or other non-metasilicate
Classification depends on silicate type; non-metas go to other sodium silicates.
If concentrated for paint or varnish use
Silicate solutions prepared as paint driers or additives fall under Chapter 32.
If anti-freeze preparations containing the metasilicate
Prepared anti-freeze fluids are classified based on end-use in 3824.
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Import Tips & Compliance
• Declare exact SiO2/Na2O ratio on commercial invoice to distinguish metasilicate from other silicates
• Use UN-approved drums for liquid transport due to alkaline corrosive nature
• Obtain prior notice via ACE for bulk chemical imports exceeding thresholds
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.
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.
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.