---
product_id: 49704980
title: "2kg of Aluminium Sulphate Al2(S04)3 Iron Free - Mordant/Purifier/PH reducer"
brand: "aluminium sulphate"
price: "VT28460"
currency: VUV
in_stock: true
reviews_count: 8
category: "Aluminium Sulphate"
url: https://www.desertcart.vu/products/49704980-2kg-of-aluminium-sulphate-al2-s04-3-iron-free-mordant
store_origin: VU
region: Vanuatu
---

# Organic Agriculture Approved Effective pH Reducer for Soil 99.9% Iron-Free Purity 2kg of Aluminium Sulphate Al2(S04)3 Iron Free - Mordant/Purifier/PH reducer

**Brand:** aluminium sulphate
**Price:** VT28460
**Availability:** ✅ In Stock

## Summary

> 🌈 Transform your craft and garden with pure, powerful aluminium sulphate!

## Quick Answers

- **What is this?** 2kg of Aluminium Sulphate Al2(S04)3 Iron Free - Mordant/Purifier/PH reducer by aluminium sulphate
- **How much does it cost?** VT28460 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/49704980-2kg-of-aluminium-sulphate-al2-s04-3-iron-free-mordant)

## Best For

- aluminium sulphate enthusiasts

## Why This Product

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

## Key Features

- • **Garden Game-Changer:** Easily shifts hydrangea colors by lowering soil pH—watch your garden transform!
- • **Crystal Clear Purity:** Iron-free formula ensures no unwanted discoloration or contamination in your projects.
- • **Eco-Conscious Choice:** Safe for organic agriculture and horticulture, aligning with sustainable living values.
- • **Versatile Power Player:** Perfect as a mordant for vibrant textile dyeing, water purifier, and paper-making enhancer.
- • **Convenient & Ready-to-Use:** Comes in a resealable waterproof bag, preserving freshness and ease of storage.

## Overview

This 2kg pack of crystalline aluminium sulphate is iron-free and multi-functional—ideal for textile mordanting, water purification, paper-making, and soil pH adjustment to change hydrangea colors. Trusted by gardeners and crafters alike, it supports organic agriculture and arrives in a resealable waterproof bag for lasting quality.

## 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: Tickled Blue - Turns my pink hydrangeas blue
Review: Handy Size and Perfectly Packed - The product arrived very quickly and was packed in a water proof resealable clear plastic bag. I’ve used it and looking forward to the results in a few weeks time.

## Features

- 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 | B06WVJ1QRL |
| Best Sellers Rank | 55,572 in Garden ( See Top 100 in Garden ) 209 in Water Garden & Pond Treatment |
| Customer Reviews | 4.7 4.7 out of 5 stars (62) |
| Date First Available | 13 May 2014 |
| Manufacturer | Trustleaf |
| Product Dimensions | 30 x 21 x 5 cm; 2.04 kg |

## Product Details

- **Brand:** Aluminium Sulphate
- **Item form:** Powder
- **Item weight:** 2.04 Kilograms
- **Manufacturer:** Trustleaf

## Images

![2kg of Aluminium Sulphate Al2(S04)3 Iron Free - Mordant/Purifier/PH reducer - Image 1](https://m.media-amazon.com/images/I/51YBQ4NSDlL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Tickled Blue
*by S***S on 24 April 2025*

Turns my pink hydrangeas blue

### ⭐⭐⭐⭐⭐ Handy Size and Perfectly Packed
*by M***S on 30 April 2020*

The product arrived very quickly and was packed in a water proof resealable clear plastic bag. I’ve used it and looking forward to the results in a few weeks time.

### ⭐⭐⭐⭐⭐ Great Delivery at Good Price
*by E***7 on 8 September 2019*

Have not been able to test produce at the moment, it takes time for the substance to work in garden. Everything else as per the title.

## Frequently Bought Together

- 2kg of Aluminium Sulphate Al2(S04)3 Iron Free - Mordant/Purifier/PH reducer
- 250g bag ALUMINIUM SULPHATE 17% Iron Free Alum Al2(SO4)3
- Trustleaf 3kg Tub of Aluminium Sulphate Al2(S04)3 Iron Free - Mordant/Purifier/PH reducer

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**Shop now:** [https://www.desertcart.vu/products/49704980-2kg-of-aluminium-sulphate-al2-s04-3-iron-free-mordant](https://www.desertcart.vu/products/49704980-2kg-of-aluminium-sulphate-al2-s04-3-iron-free-mordant)

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*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-05-08*