---
product_id: 218960174
title: "1kg bag ALUMINIUM SULPHATE 17% Iron Free Alum Al2(SO4)3"
brand: "trustleaf"
price: "€ 42.07"
currency: EUR
in_stock: true
reviews_count: 8
category: "Trustleaf"
url: https://www.desertcart.gr/products/218960174-1kg-bag-aluminium-sulphate-17-iron-free-alum-al2-so4
store_origin: GR
region: Greece
---

# Iron-free formula ideal for organic horticulture Powerful water purification coagulation agent 17% pure aluminium sulphate concentration 1kg bag ALUMINIUM SULPHATE 17% Iron Free Alum Al2(SO4)3

**Brand:** trustleaf
**Price:** € 42.07
**Availability:** ✅ In Stock

## Summary

> ⚡ Transform your garden, water, and crafts with trusted aluminium power!

## Quick Answers

- **What is this?** 1kg bag ALUMINIUM SULPHATE 17% Iron Free Alum Al2(SO4)3 by trustleaf
- **How much does it cost?** € 42.07 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/218960174-1kg-bag-aluminium-sulphate-17-iron-free-alum-al2-so4)

## Best For

- trustleaf enthusiasts

## Why This Product

- Trusted trustleaf brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Multi-Use Marvel:** Versatile for water treatment, paper-making, and even emergency first aid
- • **Precision Purity:** 17% iron-free aluminium sulphate for consistent, reliable results
- • **Eco-Smart Solution:** Safe for organic agriculture and soil pH adjustment to transform hydrangea colors
- • **Textile Pro's Choice:** Enhances dye adhesion with superior mordant properties for vibrant, lasting prints
- • **Water Clarity Booster:** Efficiently coagulates impurities for crystal-clear water purification

## Overview

This 1kg bag of 17% iron-free aluminium sulphate is a multi-functional powerhouse trusted by professionals for water purification, textile dyeing, and organic horticulture. Its high purity ensures effective coagulation of impurities, vibrant dye fixation, and soil pH adjustment to influence hydrangea colors. Ideal for eco-conscious gardeners and makers, it’s a must-have chemical with proven versatility and reliability.

## Description

Aluminium sulphate is used in water purification and as a mordant in dyeing and printing textiles. In water purification, it causes impurities to coagulate which are removed as the particulate settles to the bottom of the container or more easily filtered. When dissolved in a large amount of neutral or slightly alkaline water, aluminium sulfate produces a gelatinous precipitate of aluminium hydroxide, Al(OH)3. In dyeing and printing cloth, the gelatinous precipitate helps the dye to adhere to the clothing fibres by rendering the pigment insoluble. Can change the colour of hydrangeas by reducing the PH value of soil..

Review: Perfect! - Does what it was intended for, as a mordant. Worked perfectly.
Review: Ideal first aid supply - Bought this as my Great Dane split a nail and I couldn't stop it bleeeding, and every time it healed he knocked it and started over again..... I put half a teaspoon on some cotton wool and bandaged his nail and toe and when I checked 24 hours later it had completely dried and was able to seal the broken nail wil super glue

## Features

- Causes serious eye damage.
- Aluminium Sulphate in Crystaline form
- Iron Free - suitable for use as a dye, mordant, water purifier and jar sterilizer and in paper-making
- Can reduce soil PH to change Hydrangea's colour
- Suitable for use in Organic Agriculture / Horticulture
- Sometimes called Alum or Papermakers Alum.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07NYGXL9T |
| Best Sellers Rank | 1,733 in Garden ( See Top 100 in Garden ) 6 in Water Garden & Pond Treatment |
| Brand | Trustleaf |
| Customer Reviews | 4.5 4.5 out of 5 stars (356) |
| Date First Available | 15 July 2014 |
| Item Weight | 1.15 kg |
| Material | Aluminium |
| Product Dimensions | 16 x 25 x 4 cm; 1.15 kg |

## Product Details

- **Brand:** Trustleaf
- **Item form:** Powder
- **Item weight:** 1.15 Kilograms
- **Manufacturer:** Trustleaf
- **Package information:** Bag

## Images

![1kg bag ALUMINIUM SULPHATE 17% Iron Free Alum Al2(SO4)3 - Image 1](https://m.media-amazon.com/images/I/51HliQaZhZL.jpg)
![1kg bag ALUMINIUM SULPHATE 17% Iron Free Alum Al2(SO4)3 - Image 2](https://m.media-amazon.com/images/I/91hfm+O5SRL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect!
*by C***S on 3 April 2025*

Does what it was intended for, as a mordant. Worked perfectly.

### ⭐⭐⭐⭐⭐ Ideal first aid supply
*by A***A on 25 January 2026*

Bought this as my Great Dane split a nail and I couldn't stop it bleeeding, and every time it healed he knocked it and started over again..... I put half a teaspoon on some cotton wool and bandaged his nail and toe and when I checked 24 hours later it had completely dried and was able to seal the broken nail wil super glue

### ⭐⭐⭐⭐ It works
*by J***S on 7 August 2025*

It works for the purpose I bought it. Hydrangea has beautiful blue flowers

## Frequently Bought Together

- 1kg Bag Aluminium Sulphate 17% Iron Free Alum Al2(SO4)3
- Wild Colour: How to Make and Use Natural Dyes

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**Shop now:** [https://www.desertcart.gr/products/218960174-1kg-bag-aluminium-sulphate-17-iron-free-alum-al2-so4](https://www.desertcart.gr/products/218960174-1kg-bag-aluminium-sulphate-17-iron-free-alum-al2-so4)

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-02-19*