Liquid Sodium Silicate Grade 40° Bé
Industrial-grade liquid sodium silicate with 40° Baumé density, applied in corrugated board production and pulp bleaching. Falls under HTS 2839.90.5000 as 'other' commercial alkali metal silicates due to its specific density and ratio.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If processed into colloidal graphite-silicate mixes
Colloidal graphite products are excluded to Chapter 38.
If used in glaziers' putty or construction caulks
Mastics and putties with silicates go to Chapter 32 for prepared materials.
If of other metals like aluminum
Aluminosilicates have distinct subheadings from alkali metal silicates.
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Import Tips & Compliance
• Specify Baumé degree and weight ratio in invoices to match commercial grades
• Watch for bulk tanker import rules; ensure DOT compliance for corrosives
Related Products under HTS 2839.90.50.00
Sodium Silicate Solution (Water Glass)
A viscous, aqueous solution of sodium silicate, commonly known as water glass, used in detergents, adhesives, and as a concrete sealant. It falls under HTS 2839.90.5000 as a commercial alkali metal silicate, specifically sodium silicate in its soluble form, distinct from solid or fused varieties.
Potassium Silicate Liquid
A clear liquid solution of potassium silicate used in specialty paints, welding electrodes, and fireproofing agents. Classified under HTS 2839.90.5000 as a commercial alkali metal silicate, emphasizing its potassium base and soluble state.
Anhydrous Sodium Silicate Powder
Dehydrated powder of sodium silicate used in specialty ceramics and investment casting. Classified in HTS 2839.90.5000 as an 'other' form of commercial sodium silicate, lacking water of hydration.
Rubian's Sodium Silicate for Detergents
Proprietary commercial grade sodium silicate optimized for phosphate-free detergents. HTS 2839.90.5000 covers this as 'other' alkali metal silicate tailored for cleaning applications.
PQ Corporation Sodium Silicate N
Neutral-density sodium silicate (SiO2:Na2O ratio ~3.2) for adhesives and catalysts. Fits HTS 2839.90.5000 as a commercial variant of alkali metal silicates.
Lithium Silicate Solution
Aqueous solution of lithium silicate for concrete densifiers and protective coatings. It is included under HTS 2839.90.5000 as a commercial alkali metal silicate, with lithium as an alkali metal.