Q3HSN Code 2842
Other salts of inorganic acids or peroxoacids
Other salts of inorganic acids or peroxoacids, (including aluminosilicates, whether or not chemically defined), other than azides
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 2842
| Code | Description | GST rate |
|---|---|---|
| 2842 10 | Double or complex silicates, including aluminosilicates, whether or not chemically defined | Varies |
| 2842 90 | Other salts of inorganic acids or peroxoacids, (including aluminosilicates, whether or not chemically defined), other than azides › Other | Varies |
| 2842 90 10 | Arsenites and arsenates | Varies |
| 2842 90 20 | Bichromates and dichromates | Varies |
← Chapter 28: Industrial gases and inorganic chemicals
Related HSN codes
Frequently Asked Questions
What is the HSN code for other salts of inorganic acids or peroxoacids?
The HSN code for other salts of inorganic acids or peroxoacids is 2842, under Chapter 28 (Industrial gases and inorganic chemicals).
What is the GST rate on other salts of inorganic acids or peroxoacids?
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.