Q3HSN Code 2843
Colloidal precious metals
Colloidal precious metals; inorganic or organic compounds of precious metals, whether or not chemically defined; amalgams of precious metals
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 2843
| Code | Description | GST rate |
|---|---|---|
| 2843 10 | Colloidal precious metals: | Varies |
| 2843 10 10 | Gold — colloidal precious metals | Varies |
| 2843 10 20 | Silver — colloidal precious metals | Varies |
| 2843 21 | Silver nitrate | Varies |
| 2843 29 | Colloidal precious metals; inorganic or organic compounds of precious metals, whether or not chemically defined; amalgams of precious metals › Other | Varies |
| 2843 30 | Gold compounds | Varies |
| 2843 90 | Other compounds, amalgams — colloidal precious metals; inorganic or organic compounds of precious metals, whether or not chemically defined; amalgams of precious metals | Varies |
| 2843 90 11 | Sodium aurous thiosulphate | Varies |
| 2843 90 12 | Noble metal solutions of platinum, rhodium and palladium | Varies |
| 2843 90 20 | Amalgams | Varies |
← Chapter 28: Industrial gases and inorganic chemicals
Related HSN codes
Frequently Asked Questions
What is the HSN code for colloidal precious metals?
The HSN code for colloidal precious metals is 2843, under Chapter 28 (Industrial gases and inorganic chemicals).
What is the GST rate on colloidal precious metals?
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.