---
title: "2833.40 – Sulphates; alums; peroxosulphates…: Canada tariff & duty rates"
description: "Every Canadian tariff classification under HS 2833.40: Sulphates; alums; peroxosulphates (persulphates) › Peroxosulphates (persulphates). CBSA duty rates…"
canonical: "https://www.adhocs.ca/hs-codes/2833.40"
---

# 2833.40 Sulphates; alums; peroxosulphates (persulphates) › Peroxosulphates (persulphates)

Up: [HS codes](https://www.adhocs.ca/hs-codes) › [Chapter 28](https://www.adhocs.ca/hs-codes/28) › [2833](https://www.adhocs.ca/hs-codes/2833)

4 classifications. Each 10-digit code links to its page, with its rate under every tariff treatment.

- [2833.40.00.10](https://www.adhocs.ca/hs-codes/2833.40.00.10) Diammonium peroxodisulphate (ammonium persulphate)
- [2833.40.00.20](https://www.adhocs.ca/hs-codes/2833.40.00.20) Dipotassium peroxodisulphate (potassium persulphate)
- [2833.40.00.30](https://www.adhocs.ca/hs-codes/2833.40.00.30) Disodium peroxodisulphate (sodium persulphate)
- [2833.40.00.90](https://www.adhocs.ca/hs-codes/2833.40.00.90) Other

## Other subheadings in this heading

- Next: [2833.11](https://www.adhocs.ca/hs-codes/2833.11.00.00) Disodium sulphate

[Source: CBSA Customs Tariff](https://www.cbsa-asfc.gc.ca/trade-commerce/tariff-tarif/menu-eng.html).