HS Code 2839

Silicates and Alkali Metal Silicates

HS code 2839 covers silicates and commercial alkali metal silicates, including liquid water glass used in soaps, cements, and fireproofing treatments.

4-digit Section VITanker

HS Code 2839 — Silicates and Alkali Metal Silicates

This category includes silicates, most notably commercial alkali metal silicates like sodium or potassium silicate. Common applications include detergents, adhesives, and specialized construction sealants where they act as binding agents.

What's included

  • Sodium silicate
  • Potassium silicate
  • Magnesium silicate
  • Water glass

What's excluded

  • Natural magnesium silicates (talc) → use 2526 (Natural minerals are classified in Chapter 25.)

Common examples

  • Sodium silicate solution (water glass)
  • Potassium silicate powder
  • Industrial magnesium silicate

Frequently asked questions

What is the most common silicate traded under this code?

Sodium silicate, often referred to as water glass, is the most frequently traded product in this category due to its use in detergents and cements.

Trade & shipping notes

  • Typical duty range: 0% - 5.5%
  • Documentation: Check for purity levels as analytical grade silicates may have different valuation.
  • Typical shipping mode: Tanker
  • Top exporters: China, Germany, Belgium
  • Top importers: United States, Vietnam, Brazil

Key takeaway

Mainly covers industrial binding agents like water glass used across detergent and construction industries.

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