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HSN code 2815HSN code 2815: Sodium Hydroxide (Caustic Soda); Potassium Hydroxide (Caustic Potash); Peroxides Of Sodium Or Potassium
HSN heading 2815 sits in chapter 28 (Inorganic chemicals; compounds of precious metals, rare-earth metals and radioactive elements). It has 5 8-digit tariff items. On a tax invoice, businesses with turnover up to ₹5 crore show at least the 4-digit code 2815; above ₹5 crore, the 6-digit sub-heading.
⚠️About GST rates: GST rates on many goods changed from 22 September 2025, when most items moved to the 5% and 18% slabs and a few to 40%. This finder lists codes and descriptions only — confirm the rate for your item in the current CBIC rate notification before you invoice.
8-digit tariff items under 2815
| HSN code | Description |
|---|---|
| 28151110 | Sodium Hydroxide (Caustic Soda) : - Solid : Flakes |
| 28151190 | Sodium Hydroxide (Caustic Soda) : - Solid : Other |
| 28151200 | Sodium Hydroxide (Caustic Soda) : In Aqueous Solution (Soda Lye Or Liquid Soda) |
| 28152000 | Potassium Hydroxide (Caustic Potash) |
| 28153000 | Peroxides Of Sodium Or Potassium |
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