---
title: "Aluminium Sulphate (Al2(SO4)3·xH2O)"
description: "Aluminium sulphate (alum, Al₂(SO₄)₃·xH₂O) is a highly water-soluble white crystalline flake with min. 17% Al₂O₃. Kemindo supplies it as a coagulant for water…"
url: https://site.kemindogroup.com/en/products/aluminium-sulphate
lang: en
lastmod: 2026-10-27T00:00:00.000Z
site: Kemindo Group
---

# Aluminium Sulphate (Al2(SO4)3·xH2O)

Aluminium sulphate (alum, Al₂(SO₄)₃·xH₂O) is a highly water-soluble white crystalline flake with min. 17% Al₂O₃. Kemindo supplies it as a coagulant for water treatment and as a paper-making chemical.

## Key facts

- Formula: Al2(SO4)3·xH2O
- Business lines: [Chemicals & Consumables](https://site.kemindogroup.com/en/business/chemicals)
- Categories: [Chemicals](https://site.kemindogroup.com/en/products/category/chemical), [Paper Chemicals](https://site.kemindogroup.com/en/products/category/paper-chemical)
- Industries: pulp-paper
- Availability: Available

Aluminium Sulphate (Al₂(SO₄)₃·xH₂O) is a white or slightly off-white crystalline flake that is highly soluble in water. It is one of the most widely used aluminium compounds and plays a critical role in water treatment, paper manufacturing and other industrial applications. Aluminium sulphate is commonly referred to as "alum" in its hydrated form, although technically "alum" refers to a broader group of double sulphate compounds.

## Specifications

| Parameter | Value | Unit |
|---|---|---|
| Al₂O₃ Content | min 17 | % |
| Arsenic (As) | max 0.005 | ppb |
| pH solution at 25°C | 2.06 |  |

## Applications

- Water treatment
- Paper manufacturing

## Related products

- [Hydrated Lime](https://site.kemindogroup.com/en/products/hydrated-lime)
- [Quick Lime](https://site.kemindogroup.com/en/products/quick-lime-cao)

Request a quote: https://site.kemindogroup.com/en/contact?produk=aluminium-sulphate