---
product_id: 5603786
title: "Ferrous Sulfate Heptahydrate - FeSO4*7H2O - 20% Iron - Very Soluble - 5 Pounds"
brand: "alpha chemicals"
price: "A$97"
currency: AUD
in_stock: true
url: https://www.desertcart.com.au/products/5603786-ferrous-sulfate-heptahydrate-feso4-7h2o-20-iron-very-soluble-5
store_origin: AU
region: Australia
---

# Highly Soluble 5 Pounds Bulk 20% Iron Content Ferrous Sulfate Heptahydrate - FeSO4*7H2O - 20% Iron - Very Soluble - 5 Pounds

**Brand:** alpha chemicals
**Price:** A$97
**Availability:** ✅ In Stock

## Summary

> 🌟 Unleash the Power of Iron in Every Scoop!

## Quick Answers

- **What is this?** Ferrous Sulfate Heptahydrate - FeSO4*7H2O - 20% Iron - Very Soluble - 5 Pounds by alpha chemicals
- **How much does it cost?** A$97 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/5603786-ferrous-sulfate-heptahydrate-feso4-7h2o-20-iron-very-soluble-5)

## Best For

- alpha chemicals enthusiasts

## Why This Product

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

## Key Features

- • **Bulk Benefits:** Cost-effective 5-pound packaging for all your needs.
- • **Effortless Solubility:** Dissolves quickly for immediate effectiveness.
- • **Quality You Can Trust:** Animal feed grade ensures safety and reliability.
- • **Elevate Your Feed Game:** Unlock the power of 20% iron for optimal animal health.
- • **Versatile Applications:** Perfect for a variety of uses—feed, fertilizers, and more!

## Overview

Alpha Chemicals Ferrous Sulfate Heptahydrate is a premium animal feed grade product containing 20% iron, designed for maximum solubility and versatility. Sold in a convenient 5-pound bulk package, it caters to a wide range of applications, ensuring you have the right solution for your needs.

## Description

Ferrous Sulfate Heptahydrate - FeSO4*7H2O - 20% Iron - Very Soluble - 5 Pounds

## Features

- Animal Feed Grade
- Very Soluble Hepahydrate form
- 20% Iron
- We sell in bulk for so many different uses, we don't include any specific use instructions

## Product Details

- **Brand:** Alpha Chemicals
- **Item Weight:** 5.1 Pounds
- **Percentage assay:** 20
- **Package Information:** Bottle
- **Item Form:** Powder

## Images

![Ferrous Sulfate Heptahydrate - FeSO4*7H2O - 20% Iron - Very Soluble - 5 Pounds - Image 1](https://m.media-amazon.com/images/I/41CufLfirrL.jpg)

## Questions & Answers

**Q: Is this ferrous sulfate elemental or organic form of iron?**
A: Strictly chemically speaking it's neither. Iron sulfate is an inorganic chemical compound. Iron (Fe) is chemically bound to a sulfate ion (SO4). Carbon, the key ingredient to anything organic is not in the picture. 

But loosely speaking, if Himalayan pink salt or potassium sulfate fertilizer are considered "organic" for nutritional or agricultural labeling purposes, then so could iron sulfate. Why not? To the other side of the question, when iron sulfate reacts with other compounds, elementary iron may be freed up. The "20% iron" in the product description refers to this case.

**Q: Is this what to use for acidifying soil that is too alkaline for azaleas, rhodies, etc? What dilution and how often should it be used?**
A: Yes this should drop the Ph level by 1pt if 1lb is used over 100ft^2. I would personally only use about an ounce for each plant if the plant is at least 6ft from another.

**Q: How is this different from iron sulfate or is it the same?**
A: It is the same but there are 2 common forms of ferrous sulfate.  The heptahydrate (20% Fe) and monohydrate (30% Fe). Heptahydrate is the more common since it had better water solubility.

**Q: Can you use this to treat raw wood decking?**
A: Yes, you can. It will turn the wood silvery over time, brushed or sprayed on liberally at 3 to 4 Tablespoons per gallon of water.  The people saying it doesn't work are incorrect.  NOTE:  It may stain other surfaces, so be conscious of where you are doing this.  Also, it doesn't keep once it is mixed up, so plan to dispose of any you don't use in a day.  The compound is also used to treat plants for iron deficiency, so it is not toxic to plants (or people).

## Frequently Bought Together

- Ferrous Sulfate Heptahydrate - FeSO4*7H2O - 20% Iron - Very Soluble - 5 Pounds
- Zinc Sulfate Monohydrate - 35.5% Zn - 99% Pure - 1 Pound
- 5 Pounds - Potassium Sulfate - Sulfate of Potash

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**Shop now:** [https://www.desertcart.com.au/products/5603786-ferrous-sulfate-heptahydrate-feso4-7h2o-20-iron-very-soluble-5](https://www.desertcart.com.au/products/5603786-ferrous-sulfate-heptahydrate-feso4-7h2o-20-iron-very-soluble-5)

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-02-01*