Analytical laboratories (for sample fusion/digestion in metallurgical analysis) and specialty glass manufacturers are the narrow buyer base for sodium pyrosulphate.
HSN code 28331920 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 28331920 covers sodium pyrosulphate, used as a flux in metal analysis (fusion technique) and specialty glass manufacturing.
Ships as a solid in sealed moisture-resistant containers; typically ordered in smaller laboratory-reagent quantities rather than bulk industrial volumes.
Related HSN Codes (Heading 2833)
Frequently Asked Questions
No. HSN 28331920 is classified as Free under DGFT ITC(HS) policy, so it can be exported from India without an export license or permit.
Sodium pyrosulphate (28331920) mostly moves in smaller lab-reagent quantities for use in metallurgical sample fusion analysis, not bulk industrial volumes.
HSN 28331920 falls under Chapter 28 and Heading 2833 of India's customs tariff schedule.
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