---
product_id: 410177236
title: "250g Bag Aluminium Sulphate. *. 17% Iron Free Alum Al2(SO4)3"
brand: "trustleaf"
price: "VT9302"
currency: VUV
in_stock: true
reviews_count: 5
category: "Trustleaf"
url: https://www.desertcart.vu/products/410177236-250g-bag-aluminium-sulphate-17-iron-free-alum-al2-so4
store_origin: VU
region: Vanuatu
---

# Organic Agriculture Safe Powerful Water Purifier 17% Iron-Free Purity 250g Bag Aluminium Sulphate. *. 17% Iron Free Alum Al2(SO4)3

**Brand:** trustleaf
**Price:** VT9302
**Availability:** ✅ In Stock

## Summary

> 💧 Purify, Dye, Grow — Unlock Nature’s Chemistry!

## Quick Answers

- **What is this?** 250g Bag Aluminium Sulphate. *. 17% Iron Free Alum Al2(SO4)3 by trustleaf
- **How much does it cost?** VT9302 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/410177236-250g-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

- • **Versatile Application:** Perfect as a mordant in dyeing, water purifier, jar sterilizer, and paper-making additive.
- • **Eco-Conscious & Organic:** Iron-free formula ideal for organic farming and horticulture, including soil pH adjustment for vibrant hydrangea colors.
- • **User-Friendly Packaging:** Convenient 250g resealable bag keeps product fresh and easy to store, minimizing waste.
- • **Crystal Clear Performance:** Premium crystalline aluminium sulphate ensures consistent, high-purity results for water treatment and textile dyeing.
- • **Trusted Quality & Reviews:** Highly rated with 4.4 stars and praised for effective, multi-purpose use by professionals and hobbyists alike.

## Overview

Trustleaf’s 250g Aluminium Sulphate powder delivers 17% iron-free alum in crystalline form, expertly crafted for water purification, textile mordanting, organic agriculture, and soil pH adjustment. Its versatile, eco-friendly formula supports vibrant hydrangea blooms and clean water, all in a resealable bag designed for professional and home use.

## 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! Nice re-sealable tub and now I have beautiful blue hydrangeas!
Review: 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

- 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.
- This product is not a Biocide

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07P4ZP7Y8 |
| Best Sellers Rank | #91,945 in Office Products ( See Top 100 in Office Products ) #253 in Fabric Dyes |
| Brand Name | Trustleaf |
| Container Type | Bag |
| Customer Reviews | 4.4 4.4 out of 5 stars (553) |
| Item Form | Powder |
| Manufacturer | Trustleaf |
| Molecular Weight | 192.13 |

## Product Details

- **Brand:** Trustleaf
- **Item form:** Powder
- **Manufacturer:** Trustleaf
- **Molecular weight:** 192.13
- **Package information:** Bag

## Images

![250g Bag Aluminium Sulphate. *. 17% Iron Free Alum Al2(SO4)3 - Image 1](https://m.media-amazon.com/images/I/512JZWOPyEL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by M***E on 30 December 2025*

Perfect! Nice re-sealable tub and now I have beautiful blue hydrangeas!

### ⭐⭐⭐⭐⭐ Review
*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

### ⭐⭐⭐⭐⭐ Review
*by A***R on 24 October 2025*

My son asked to order for their art biology project. In terms of chemistry effect it worked. My son asked me to order more.

## Frequently Bought Together

- 250g bag ALUMINIUM SULPHATE 17% Iron Free Alum Al2(SO4)3
- Jacquard Soda Ash Dye Fixer, Tie-Dye Fabric Colour Fixative and Activator, 1 lb, Improves Colour Retention, Ideal for Cotton and Natural Fibers, Easy to Use

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**Shop now:** [https://www.desertcart.vu/products/410177236-250g-bag-aluminium-sulphate-17-iron-free-alum-al2-so4](https://www.desertcart.vu/products/410177236-250g-bag-aluminium-sulphate-17-iron-free-alum-al2-so4)

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