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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If not metasilicate but another sodium silicate like orthosilicate
Other commercial sodium silicates fall under the broader subheading for non-metasilicate forms.
If pre-mixed with organic surfactants for retail cleaning
Formulations prepared for specific uses like detergents are classified as chemical preparations in 3824.
If blended into mineral fertilizers
Silicate-based fertilizer additives shift to Chapter 31 for goods used as fertilizers.
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Import Tips & Compliance
• Verify purity and hydration level via certificate of analysis to confirm classification under 2839.11.00.00
• Ensure proper labeling as a corrosive alkali for DOT hazardous material shipping compliance
• Avoid misclassification as detergent mixtures under Chapter 34 by importing in bulk chemical form
Related Products under HTS 2839.11.00.00
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.
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.