Detergent and cleaning product manufacturers (as a builder/alkalinity source) and water treatment chemical formulators are the dominant buyers of sodium metasilicate.
HSN code 28391100 is classified as Free under India's DGFT ITC(HS) export policy — no export license is required.
This product may be freely exported/imported from India without a license.
HSN Code Details
HSN 28391100 covers sodium metasilicates, used in detergent manufacturing, water treatment, and as a corrosion inhibitor/binder in various industrial formulations.
Ships as non-hazardous solid or liquid solution in moisture-resistant bags/drums; mildly corrosive/alkaline (high pH) requiring standard corrosive-solid labeling for downstream safety handling.
Related HSN Codes (Heading 2839)
Frequently Asked Questions
No. HSN 28391100 is classified as Free under DGFT ITC(HS) policy, so it can be exported from India without an export license or permit.
Sodium metasilicate (28391100) is mildly corrosive due to high alkalinity - ships in standard bags/drums with corrosive-solid labeling, mainly bought by detergent manufacturers.
HSN 28391100 falls under Chapter 28 and Heading 2839 of India's customs tariff schedule.
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