Specialty chemical formulators and analytical reagent suppliers use this residual code for niche inorganic acids that don't fit the named subheadings, such as uncommon oxo-acids used in research quantities.
HSN code 28112990 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 28112990 is a residual category for other inorganic acids and oxides of non-metals not separately classified elsewhere in heading 2811, covering miscellaneous specialty inorganic acid compounds.
Because this is a catch-all code, customs may request a detailed product data sheet or CAS number at the port to confirm correct classification and applicable hazmat class before clearance.
Related HSN Codes (Heading 2811)
- 28114 Chemically defined complex acids consisting of a non-metal acid of Sub-Chapter II and a metal acid of Sub-Chapter IV are to be classified in headingFree
- 28111100Hydrogen fluoride (hydrofluoric acid)Free
- 28111200Hydrogen cyanide (hydrocyanic acid)Free
- 281119Other inorganic acids : -- OtherFree
- 28111920(phosphinic acid)Free
- 28111930Acids of arsenicFree
Frequently Asked Questions
No. HSN 28112990 is classified as Free under DGFT ITC(HS) policy, so it can be exported from India without an export license or permit.
28112990 is a residual 'other' code - expect customs to ask for a product spec sheet or CAS number since the exact chemical isn't named in the tariff description.
HSN 28112990 falls under Chapter 28 and Heading 2811 of India's customs tariff schedule.
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