Textile printing operations (discharge printing) and dye manufacturers use sodium formaldehyde sulphoxylate as a milder, more stable alternative to standard dithionite.
HSN code 28311020 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 28311020 covers sodium formaldehyde sulphoxylate (sodium hydrosulphite variant), a reducing agent used in textile discharge printing and vat dye applications.
More stable than plain sodium dithionite but still moisture-sensitive, ships in sealed moisture-resistant packaging under the relevant reducing-agent hazmat classification.
Related HSN Codes (Heading 2831)
Frequently Asked Questions
No. HSN 28311020 is classified as Free under DGFT ITC(HS) policy, so it can be exported from India without an export license or permit.
Sodium formaldehyde sulphoxylate (28311020) is more stable than standard dithionite but still needs moisture-sealed packaging - used in textile discharge printing.
HSN 28311020 falls under Chapter 28 and Heading 2831 of India's customs tariff schedule.
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