Sodium Silicate Solution (Water Glass)
A clear, viscous liquid solution of sodium silicate (Na2SiO3) in water, commonly known as water glass. It falls under HTS 2839.19.00.00 as a commercial sodium silicate, other than sodium metasilicates, used primarily in industrial applications. This chemically defined inorganic compound is supplied in liquid form for various binding and sealing purposes.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If chemically sodium metasilicate
Sodium metasilicates have a specific subheading 2839.11, while other sodium silicates fall under 2839.19
If formulated as a prepared binder with additives
Mixtures with organic substances or other chemicals may be classified as chemical preparations rather than pure silicates
If silicate of other alkali metals like potassium
Commercial silicates of potassium or other metals (not sodium) are covered under the 'other' subheading 2839.90
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Import Tips & Compliance
• Verify concentration and ratio (e.g
• SiO2:Na2O) on certificates of analysis for proper classification; ensure packaging complies with DOT hazardous material regulations if applicable; obtain supplier declarations confirming it's not a metasilicate to avoid reclassification
Related Products under HTS 2839.19.00.00
Liquid Sodium Silicate Grade 40° Bé
Industrial-grade liquid sodium silicate with a density of 40° Baumé, used in manufacturing corrugated cardboard and paperboard. Classified under HTS 2839.19.00.00 as other commercial sodium silicates. It acts as a starch modifier and adhesive in packaging production.
Powdered Sodium Silicate Anhydrous
Anhydrous powdered form of sodium silicate used in detergent formulations and welding rod coatings. It qualifies under HTS 2839.19.00.00 for other commercial sodium silicates excluding metasilicates. The powder form offers high reactivity for industrial compounding.
Sodium Silicate Lumps (Solid Glass)
Solid lumps or cullet of sodium silicate, also called solid water glass, used in glass manufacturing and refractories. Falls under HTS 2839.19.00.00 as other commercial sodium silicates. These are melted and processed into various industrial products.
Industrial Sodium Silicate for Detergents
Medium-ratio sodium silicate (2.4:1 SiO2/Na2O) liquid for use as builder in laundry and dishwashing detergents. Classified in HTS 2839.19.00.00 as other commercial sodium silicates. Provides alkalinity and corrosion protection in cleaning formulations.
Sodium Silicate for Egg Preservation
Food-grade sodium silicate solution used to coat eggshells for long-term storage without refrigeration. Under HTS 2839.19.00.00 as other commercial sodium silicates suitable for specific applications. Forms a protective silicate film on porous eggshells.
High-Ratio Sodium Silicate for Catalysts
High silica-to-soda ratio (3.2:1) sodium silicate used in catalyst manufacturing and zeolite production. HTS 2839.19.00.00 covers this other commercial sodium silicate. Essential for forming silica frameworks in chemical processes.