Q3HSN Code 2833
Sulphates; alums; peroxosulphates (persulphates)
GST rate
| Thorium oxalate, Enriched KBF4 (enriched potassium fluroborate), Enriched elemental boron, Nuclear fuel | 5% |
| Anaesthetics, Potassium Iodate, Iodine, Steam | 5% |
| Micronutrients, which are covered under serial number 1(g) of Schedule 1, Part (A) of the Fertilizer Control Order, 1985 and are manufactured by the manufacturers which are registered under the Fertilizer Control Order, 1985 | 5% |
| All inorganic chemicals [other than those specified in notification th No.10/2025- Central Tax (Rate) dated 17 September 2025 or other Schedules of this notification] | 18% |
Codes under 2833
| Code | Description | GST rate |
|---|---|---|
| 2833 11 | Disodium sulphate | Varies |
| 2833 19 | Sulphates; alums; peroxosulphates (persulphates) › Other | Varies |
| 2833 19 10 | Sodium hydrogen sulphate (acid sulphate) | Varies |
| 2833 19 20 | Sodium pyrosulphate | Varies |
| 2833 21 | Magnesium — sulphates; alums; peroxosulphates (persulphates) | Varies |
| 2833 22 | Aluminium — sulphates; alums; peroxosulphates (persulphates) | Varies |
| 2833 22 10 | Aluminium sulphate (iron free) | Varies |
| 2833 23 00 | Sulphates; alums; peroxosulphates (persulphates) - other sulphates: of chromium | Varies |
| 2833 24 | Nickel — sulphates; alums; peroxosulphates (persulphates) | Varies |
| 2833 25 | Copper — sulphates; alums; peroxosulphates (persulphates) | Varies |
| 2833 26 10 | Sulphates; alums; peroxosulphates (persulphates) - other sulphates: - of zinc: agricultural grade zinc sulphate ordinarily used as micronutrient | Varies |
| 2833 26 90 | Sulphates; alums; peroxosulphates (persulphates) - other sulphates: - of zinc: other | Varies |
| 2833 27 | Barium — sulphates; alums; peroxosulphates (persulphates) | Varies |
| 2833 29 | Sulphates; alums; peroxosulphates (persulphates) › Other | Varies |
| 2833 29 10 | Ferrous sulphate | Varies |
| 2833 29 20 | Sulphates; alums; peroxosulphates (persulphates) - other sulphates: - other: mercuric sulphate | Varies |
| 2833 29 30 | Quinidine sulphate | Varies |
| 2833 29 40 | Manganese sulphate | Varies |
| 2833 29 50 | Strontium sulphate | Varies |
| 2833 30 | Alums: | Varies |
| 2833 30 10 | Ammonium alum | Varies |
| 2833 30 20 | Ferric ammonium alum | Varies |
| 2833 30 30 | Potash alum | Varies |
| 2833 40 | Peroxosulphates (persulphates) | Varies |
← Chapter 28: Industrial gases and inorganic chemicals
Related HSN codes
Frequently Asked Questions
What is the HSN code for sulphates; alums; peroxosulphates (persulphates)?
The HSN code for sulphates; alums; peroxosulphates (persulphates) is 2833, under Chapter 28 (Industrial gases and inorganic chemicals).
What is the GST rate on sulphates; alums; peroxosulphates (persulphates)?
It depends on the specific item: thorium oxalate, enriched kbf4 (enriched potassium fluroborate), enriched elemental boron, nuclear fuel is 5%; anaesthetics, potassium iodate, iodine, steam is 5%; micronutrients, which are covered under serial number 1(g) of schedule 1, part (a) of the fertilizer control order, 1985 and are manufactured by the manufacturers which are registered under the fertilizer control order, 1985 is 5%; all inorganic chemicals [other than those specified in notification th no.10/2025- central tax (rate) dated 17 september 2025 or other schedules of this notification] is 18%.
How many digits of the HSN code go on a GST invoice?
It depends on your turnover in the previous financial year: businesses above ₹5 crore generally show 6 digits (8 for certain specified goods), and smaller businesses show 4 digits on B2B invoices. Check the current e-invoicing/HSN notification for the exact threshold that applies to you.
Rates as per Notification No. 9/2025-Central Tax (Rate), as amended, as of 7 October 2026. For guidance only — verify with your tax advisor.