HSN Codes · Chapter 28: Inorganic Chemicals

HSN Code 28111100

Other inorganic acids and other inorganic oxygen compounds of non-metals — hydrogen fluoride (hydrofluoric acid) — hydrogen fluoride (hydrofluoric acid)

Typical GST rate

Varies

Depends on sub-classification

Type

Goods

HSN classification

Code level

8-digit

Tariff item

Reading code 28111100

The first two digits (28) place this code in chapter 28 — Inorganic Chemicals. Heading 2811 groups the product family, and the remaining digits pin down this specific 8-digit classification. Remember: you can never invent a shorter code by truncating a longer one — only codes that exist in the official tariff are valid.

Industrial inorganic chemicals — acids, alkalis, oxides, and salts — plus compounds of precious and rare-earth metals.

Parent heading

2811 — Other inorganic acids and other inorganic oxygen compounds of non-metals

Related codes in heading 2811

  • 28111200 — Other inorganic acids and other inorganic oxygen compounds of non-metals — hydrogen cyanide (hydrocyanic acid ) — hydrogen cyanide (hydrocyanic acid)
  • 28111910 — Other inorganic acids and other inorganic oxygen compounds of non-metals - other inorganic acids : - other : hydrocyanic acid (hydrogen cyanide, prussic acid)
  • 28111920 — Other inorganic acids and other inorganic oxygen compounds of non-metals — other — hypophosphorus acid (phosphinic acid)
  • 28111930 — Other inorganic acids and other inorganic oxygen compounds of non-metals — other — acids of arsenic
  • 28111940 — Other inorganic acids and other inorganic oxygen compounds of non-metals — other — sulphonic acid
  • 28111990 — Other inorganic acids and other inorganic oxygen compounds of non-metals — other — other
  • 28112110 — Other inorganic acids and other inorganic oxygen compounds of non-metals — carbon dioxide — dry ice
  • 28112190 — Other inorganic acids and other inorganic oxygen compounds of non-metals — carbon dioxide — other
  • 28112200 — Other inorganic acids and other inorganic oxygen compounds of non-metals — silicon dioxide — silicon dioxide
  • 28112300 — Other inorganic acids and other inorganic oxygen compounds of non-metals - other inorganic oxygen compounds of non-metals : sulphur dioxide

Frequently asked questions

The GST rate under 28111100 depends on the specific item and applicable notifications. Check the classification with our HSN code finder and confirm the rate before invoicing.
Businesses with annual aggregate turnover of ₹5 crore or more must report at least 6 digits on e-invoices and e-way bills; below ₹5 crore, 4 digits is the B2B minimum. Exports require 8 digits.
Every line item on a GST tax invoice carries its HSN code alongside the description, quantity, taxable value, and tax breakup. The code also flows into your GSTR-1 HSN summary and e-way bills.

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