Textile dyeing mills (vat and sulfur dye reduction processes) and pulp/paper bleaching operations are the dominant buyers of sodium dithionite.
HSN code 28311010 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 28311010 covers sodium dithionite (sodium hydrosulphite), a strong reducing agent used in textile dyeing (vat dye reduction) and paper pulp bleaching.
Sodium dithionite is highly reactive with moisture and air, generating heat and potentially combusting if packaging fails - ships in sealed, nitrogen-purged drums under UN 1384 with strict moisture exclusion.
Related HSN Codes (Heading 2831)
Frequently Asked Questions
No. HSN 28311010 is classified as Free under DGFT ITC(HS) policy, so it can be exported from India without an export license or permit.
Sodium dithionite (28311010) is UN 1384 and can self-heat or combust if exposed to moisture - ships in sealed, nitrogen-purged drums, critical for textile dye-reduction buyers.
HSN 28311010 falls under Chapter 28 and Heading 2831 of India's customs tariff schedule.
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