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Silicates; commercial alkali metal silicates. > Of sodium: > Other > Other
Duty Rate (from China)
Products classified under Tariff item 2839.1
Anhydrous Sodium Metasilicate
Anhydrous sodium metasilicate (Na2SiO3) is the water-free powdered form of this commercial alkali metal silicate, explicitly covered by tariff item 2839.11.00. It serves as a key ingredient in heavy-duty detergents and industrial cleaning compounds, where its high alkalinity and sequestering properties are essential.
2839.11.00Liquid Sodium Metasilicate 50% Solution
A 50% aqueous solution of sodium metasilicate, classified as a commercial sodium metasilicate under tariff item 2839.11.00. Utilized in pulp and paper processing as a defoamer and alkaline agent, this solution is a normal and necessary method of putting up the product for transport and safety.
2839.11.00Metso Beads Sodium Metasilicate
Metso Beads are dense, bead-form anhydrous sodium metasilicate, classified under tariff item 2839.11.00. Designed for easy handling in detergent manufacturing, its low dust and high solubility make it ideal for industrial formulations requiring precise dosing.
2839.11.00PQ Sodium Silicate Solution (Metasilicate Grade)
PQ Sodium Silicate Solution (Metasilicate Grade) is a liquid sodium metasilicate (Na2O·xSiO2) used as a corrosion inhibitor in cooling systems and as a binder in adhesives. It qualifies under tariff item 2839.11.00 as a sodium metasilicate, a separate chemically defined compound of Chapter 28. The product is imported in bulk liquid form, consistent with the chapter's scope for inorganic chemicals.
2839.11.00Sodium Metasilicate for Welding Flux
High-purity sodium metasilicate powder used in welding flux formulations, falling under tariff item 2839.11.00 as a commercial alkali silicate. It provides slag-forming and cleaning properties during welding, and its purity ensures consistent performance.
2839.11.00Sodium Metasilicate Nonahydrate Crystals
Sodium metasilicate nonahydrate (Na2SiO3·9H2O) appears as free-flowing white crystals, a hydrated commercial sodium silicate under tariff item 2839.11.00. Commonly used in laundry powders and metal cleaning compounds, the water of crystallization is integral to its structure.
2839.11.00Sodium Metasilicate Pentahydrate
Sodium metasilicate pentahydrate (Na2SiO3·5H2O) is a hydrated form of sodium metasilicate, a granular or powdered inorganic compound classified under tariff item 2839.11.00 as a commercial sodium silicate. It is widely used in detergents, cleaning agents, and as a corrosion inhibitor.
2839.19.00Colloidal Sodium Silicate Dispersion
A stable colloidal dispersion of sodium silicate nanoparticles designed for precision casting and investment casting shell building. This product is a commercial sodium silicate solution, not a separate chemically defined compound, and therefore falls under the 'Other' tariff item for sodium silicates.
2839.19.00High-Ratio Sodium Silicate for Catalysts
High-ratio sodium silicate with a silica-to-soda ratio of 3.2:1, used in catalyst manufacturing and zeolite production. This commercial sodium silicate is not a metasilicate and falls under the 'Other' tariff item for sodium silicates.
2839.19.00Industrial Sodium Silicate for Detergents
Medium-ratio sodium silicate liquid (2.4:1 SiO2/Na2O) used as a builder in laundry and dishwashing detergents. This commercial sodium silicate solution is not a metasilicate and falls under the 'Other' tariff item for sodium silicates.
2839.19.00Liquid Sodium Silicate Grade 40° Bé
Industrial-grade liquid sodium silicate with a density of 40° Baumé, used in manufacturing corrugated cardboard and paperboard. This commercial sodium silicate solution is not a metasilicate and falls under the 'Other' tariff item for sodium silicates.
2839.19.00Powdered Sodium Silicate Anhydrous
Anhydrous powdered sodium silicate used in detergent formulations and welding rod coatings. This commercial sodium silicate is not a metasilicate and falls under the 'Other' tariff item for sodium silicates.
2839.19.00Sodium Silicate Binder for Abrasives
Liquid sodium silicate binder used for vitrified and resinoid abrasive wheels. This commercial sodium silicate solution is not a metasilicate and falls under the 'Other' tariff item for sodium silicates.
2839.19.00Sodium Silicate for Cardboard Production
Low-viscosity sodium silicate specifically formulated for corrugated cardboard manufacturing, replacing starch in paper bonding processes. This commercial sodium silicate solution is not a metasilicate and falls under the 'Other' tariff item for sodium silicates.
2839.19.00Sodium Silicate for Egg Preservation
Food-grade sodium silicate solution used to coat eggshells for long-term storage without refrigeration. This commercial sodium silicate solution is not a metasilicate and falls under the 'Other' tariff item for sodium silicates.
2839.19.00Sodium Silicate for Refractory Cements
Liquid sodium silicate binder for no-cement castables and refractory mortars in high-temperature applications. This commercial sodium silicate solution is not a metasilicate and falls under the 'Other' tariff item for sodium silicates.
2839.19.00Sodium Silicate for Welding Electrode Flux
Specialty sodium silicate for binding flux coatings on welding electrodes. This commercial sodium silicate solution is not a metasilicate and falls under the 'Other' tariff item for sodium silicates.
2839.19.00Sodium Silicate Lumps (Solid Glass)
Solid lumps or cullet of sodium silicate, also called solid water glass, used in glass manufacturing and refractories. This commercial sodium silicate is not a metasilicate and falls under the 'Other' tariff item for sodium silicates.
2839.19.00Sodium Silicate Precipitated Powder
Precipitated sodium silicate powder from a controlled reaction, used in specialty coatings. This commercial sodium silicate is not a metasilicate and falls under the 'Other' tariff item for sodium silicates.
2839.19.00Sodium Silicate Solution (Water Glass)
A clear, viscous liquid solution of sodium silicate (Na2SiO3) in water, commonly known as water glass. This commercial sodium silicate solution is not a metasilicate and falls under the 'Other' tariff item for sodium silicates.
2839.19.00Technical Grade Sodium Silicate 2.0 Ratio
Technical grade liquid sodium silicate with a 2.0 SiO2/Na2O ratio for general industrial use including adhesives. This commercial sodium silicate solution is not a metasilicate and falls under the 'Other' tariff item for sodium silicates.
2839.19.00Water Glass Solution Grade 3.2
Grade 3.2 water glass (SiO2/Na2O ratio 3.2) solution for soil stabilization and concrete sealing. This commercial sodium silicate solution is not a metasilicate and falls under the 'Other' tariff item for sodium silicates.