---
product_id: 473736375
title: "1kg Bag Aluminium Sulphate 17% Iron Free Alum Al2(SO4)3"
brand: "trustleaf"
price: "$88.67"
currency: USD
in_stock: true
category: "Trustleaf"
url: https://www.desertcart.us/products/473736375-1kg-bag-aluminium-sulphate-17-iron-free-alum-al2-so4
store_origin: US
region: United States of America
---

# Iron-free for organic & horticulture use Effective water purifier & coagulation agent 17% pure aluminium sulphate crystals 1kg Bag Aluminium Sulphate 17% Iron Free Alum Al2(SO4)3

**Brand:** trustleaf
**Price:** $88.67
**Availability:** ✅ In Stock

## Summary

> ⚡ Elevate your craft & garden with the pure power of Trustleaf Alum!

## Quick Answers

- **What is this?** 1kg Bag Aluminium Sulphate 17% Iron Free Alum Al2(SO4)3 by trustleaf
- **How much does it cost?** $88.67 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/473736375-1kg-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

- • **Soil PH Modifier:** Transform your hydrangeas’ bloom color by naturally adjusting soil acidity.
- • **Iron-Free Formula:** Perfect for sensitive applications like dyeing, organic farming, and paper-making without contamination.
- • **Crystal Clear Purity:** 17% aluminium sulphate in premium crystalline form ensures consistent performance.
- • **Versatile Industrial Use:** Trusted by professionals for textile mordanting, jar sterilizing, and eco-friendly water treatment.
- • **Water Purification Power:** Efficiently coagulates impurities for cleaner, clearer water every time.

## Overview

Trustleaf’s 1kg Aluminium Sulphate bag delivers 17% iron-free alum crystals ideal for water purification, textile dyeing, and organic horticulture. This multi-functional chemical efficiently coagulates impurities, enhances dye adherence, and naturally adjusts soil pH to influence hydrangea colors, making it a must-have for eco-conscious professionals and creative experts alike.

## 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..

## 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 | B07NYGXL9T |
| Best Sellers Rank | #98,155 in Office Products ( See Top 100 in Office Products ) #263 in Fabric Dyes |
| Brand Name | Trustleaf |
| Container Type | Bag |
| Customer Reviews | 4.5 4.5 out of 5 stars (577) |
| Item Form | Powder |
| Manufacturer | Trustleaf |

## Product Details

- **Brand:** Trustleaf
- **Item form:** Powder
- **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)

## Available Options

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

## 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.us/products/473736375-1kg-bag-aluminium-sulphate-17-iron-free-alum-al2-so4](https://www.desertcart.us/products/473736375-1kg-bag-aluminium-sulphate-17-iron-free-alum-al2-so4)

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-07-09*