---
product_id: 581863110
title: "Copper Sulfate Pentahydrate - Crystals - 25.2% Cu - 5 Pounds"
brand: "alpha chemicals"
price: "24163 kr"
currency: ISK
in_stock: true
url: https://www.desertcart.is/products/581863110-copper-sulfate-pentahydrate-crystals-25-2-cu-5-pounds
store_origin: IS
region: Iceland
---

# 5H2O 25.2% Cu Crystal Form Copper Sulfate Pentahydrate - Crystals - 25.2% Cu - 5 Pounds

**Brand:** alpha chemicals
**Price:** 24163 kr
**Availability:** ✅ In Stock

## Summary

> ✨ Grow Your Knowledge, One Crystal at a Time!

## Quick Answers

- **What is this?** Copper Sulfate Pentahydrate - Crystals - 25.2% Cu - 5 Pounds by alpha chemicals
- **How much does it cost?** 24163 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/581863110-copper-sulfate-pentahydrate-crystals-25-2-cu-5-pounds)

## 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 Availability:** Stock up and save for all your experimental needs.
- • **Quality You Can Trust:** Premium-grade copper sulfate for reliable results.
- • **Versatile Applications:** Ideal for a variety of scientific and educational projects.
- • **Elevate Your Experiments:** Unleash your inner scientist with high-purity copper sulfate crystals!
- • **Perfect for Crystal Growth:** Transform your space into a mesmerizing crystal garden.

## Overview

Alpha Chemicals Copper Sulfate Pentahydrate is a high-quality chemical compound featuring 25.2% copper content, available in a convenient 5-pound bulk package. Perfect for crystal growing and a variety of scientific experiments, this product is designed for those who seek to explore and innovate in their projects.

## Description

Alpha Chemicals Copper Sulfate Pentahydrate - Crystals - 25.2% Cu - 5 Pounds

## Features

- Chemical Structure - CuSO4*5H2O
- Crystal Form (see second picture)
- Great for crystal growing and other experiments
- We sell bulk for so many different uses, we don't include any specific use instructions

## Product Details

- **Brand:** Alpha Chemicals
- **Item weight:** 5 Pounds
- **Item volume:** 5 Liters
- **Percentage assay:** 25.2
- **Package information:** Bag

## Images

![Copper Sulfate Pentahydrate - Crystals - 25.2% Cu - 5 Pounds - Image 1](https://m.media-amazon.com/images/I/41d+tFjIE8L.jpg)

## Questions & Answers

**Q: Can I use this to make a Bordeaux mixture?**
A: Hi - not sure about the Bordeaux mixture but I can confirm the granules dissolve fairly easily.  I’ve been using this in a fountain and small pool to control algae growth.  It has a blue color.  Hope this helps!

**Q: I want to sprinkle it around my dock to kill the hydrillas.  Will the crystals sink?**
A: No! This is a very bad idea.  Copper sulfate can be toxic to fish and other organisms. Copper sulfate results in copper build up in pond sediments and creates a sterile bottom in the pond. Besides many important organisms, it kills beneficial bacteria.

Studies with several aquatic species have found copper to be highly to very highly toxic to fish and aquatic life. Trout, koi and juvenile fish of several species are known to be particularly sensitive to copper. Fish kills have been reported after copper sulfate applications for algae control in ponds and lakes.

You could be cited for criminal vandalism and hurting wildlife if you use this in a public pond or stream. Please do not kill fish and all life in the pond with this highly toxic product. It is harmless to humans but very toxic to fish.  Just dig out the offending plant or get fish that will eat it - as long as its a native fish to the pond.  Don't mess with nature, please!

**Q: is this product used  to kill a tree stump ?**
A: I have used this product to kill the roots of a tree that was causing issues by blocking an area of the drain.

**Q: can this product be used with a drain foaming agent ?**
A: RE: Cupric Sulfate-Pentahydrate: I have never used this product for any other reason than to treat (kill) tree roots in my septic pipes. By itself it does not foam but my understanding that used with foaming sewer line cleaners, it augments/enhances the foaming-cleaning action of such products of which there are many different formulations.

## Frequently Bought Together

- Copper Sulfate Pentahydrate - Crystals - 25.2% Cu - 5 Pounds
- Zinc Sulfate Monohydrate - 35.5% Zn - 99% Pure - 1 Pound
- Ferrous Sulfate Heptahydrate - FeSO4*7H2O - 20% Iron - Very Soluble - 5 Pounds

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*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-02-04*