--- product_id: 34180107 title: "Copper Sulfate Small Crystals 50lbs Bag - EPA 99% Pure" brand: "bbear" price: "€ 768.37" currency: EUR in_stock: true category: "B Bear" url: https://www.desertcart.pt/products/34180107-copper-sulfate-small-crystals-50lbs-bag-epa-99-pure store_origin: PT region: Portugal --- # EPA-registered for algae & root control 50 lbs bulk supply 99.9% pure chemical assay Copper Sulfate Small Crystals 50lbs Bag - EPA 99% Pure **Brand:** bbear **Price:** € 768.37 **Availability:** ✅ In Stock ## Summary > ⚡ Bulk Power Meets Precision Purity – Don’t Let Roots or Algae Win! ## Quick Answers - **What is this?** Copper Sulfate Small Crystals 50lbs Bag - EPA 99% Pure by bbear - **How much does it cost?** € 768.37 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/34180107-copper-sulfate-small-crystals-50lbs-bag-epa-99-pure) ## Best For - bbear enthusiasts ## Why This Product - Trusted bbear brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Bulk Power Delivery:** 50 lbs of potent crystals ensures long-lasting, cost-effective treatment. - • **Fast FedEx Shipping:** Get your bulk supply lightning fast and stay ahead of maintenance schedules. - • **Precision Crystal Size:** 3-5 mm crystals designed for optimal dissolution and performance. - • **Industrial-Grade Purity:** Experience unmatched 99.9% pure copper sulfate crystals for maximum efficacy. - • **EPA-Registered Assurance:** Certified and trusted for safe, effective root and algae control. ## Overview Copper Sulfate Small Crystals (50 lbs) from BBear deliver 99.9% pure, EPA-registered pentahydrate crystals designed for effective root killing and algae control in plumbing and septic systems. Packaged in a convenient bulk bag and shipped fast via FedEx, this product is a trusted solution for industrial and scientific applications requiring reliable chemical performance. ## Description Copper Sulfate Pentahydrate - EPA labeled and registered for killing algae or tree roots. Product is 50lbs and comes lighting fast to you via fedex! EPA registration number: 73385-1 EPA establishment number: 073385-MEX-001 - WE DO NOT SHIP TO NEW YORK STATE ## Features - Effective Root Kill For Plumbing and Septic - Algaecide - Copper Sulfate Bulk - 99.9% Pure - 3-5 MM Crystals ## Technical Specifications | Specification | Value | |---------------|-------| | % Assay of Chemical(s) | 99.9 | | ASIN | B01KIORC58 | | Best Sellers Rank | #212,757 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #408 in Life Science Supplies #1,623 in Lab Chemicals | | Brand | BBear | | Brand Name | BBear | | Container Type | Bag | | Customer Reviews | 4.5 out of 5 stars 82 Reviews | | Item Form | Copper | | Item Weight | 50 Pounds | | Manufacturer | Earthworks Health LLC | | Package Information | Bag | | Part Number | COPPEREPASMALL | | Percentage assay | 99.9 | | UPC | 756519496918 | | Unit Count | 800 Count | ## Product Details - **Brand:** BBear - **Item Form:** Copper - **Item Weight:** 50 Pounds - **Package Information:** Bag - **Percentage assay:** 99.9 ## Images ![Copper Sulfate Small Crystals 50lbs Bag - EPA 99% Pure - Image 1](https://m.media-amazon.com/images/I/41fz64v8U6L.jpg) ## Questions & Answers **Q: im treating a septic lagoon to kill weeds etc in the lagoon.whats best and does anyone sell it in biodegradable bombs??** A: How to Apply: Copper Sulfate can be applied to impounded water by the following methods: 1. Application by Dragging Under Water: By placing Copper Sulfate in a burlap or finer mesh bag, apply by dragging the bag attached to a boat or float so that bags are suspended in the top foot of water until the crystals are dissolved. Drag the bag of copper sulfate first near the shoreline and continue outward by moving as the boat travels in parallel lines about 20 to 100 feet apart until area has been treated or until 1/3to 1/2 of the surface area has been treated. Continue dragging bag over treated area until the required minimum dose is applied and all copper sulfate is dissolved. Determine the quantity of copper sulfate needed to treat the problem area following directions and precautions on the label. 2. Application by Spraying Solution on Water Surface: Dissolve the minimum required dose of Copper Sulfate in water and spray the solution uniformly over the body of water. When spraying a solution of copper sulfate, mix copper sulfate in sufficient water to thoroughly spray the water surface. While the volume per surface acre depends on the type of spray equipment being used, spray volume should be approximately 20 to 500 or more gallons per acre of surface water. Several types of solutions and spraying equipment may be used. Observe previous cautions on the effect of copper sulfate solution on various metals in spraying containers. 3. Application by Slug Method: Make a dump of Copper Sulfate into the irrigation ditch or lateral at ¼ to 2 pounds per second of water per treatment. Repeat about every 2 weeks as needed. A dump is usually necessary every 5 to 30 miles depending on water hardness, alkalinity, and algae concentration. Copper Sulfate becomes less effective as the bicarbonate alkalinity increases. Its effectiveness is significantly reduced when the bicarbonate alkalinity exceeds about 150 ppm as calcium carbonate (CaCO3). 4. Application by Broadcasting: Dry Copper Sulfate can be broadcast on the water surface using a properly equipped boat. An air blower can be used to discharge these crystals at a specific rate over the surface of the water. When using this method, the wind direction is an important factor. Do not use this method unless completely familiar with this type of application. 5. Application by Spraying from Airplanes and Helicopters: Professional personnel licensed by the State Agricultural Extension Service are allowed to apply dry Copper Sulfate in some states. Rate may not exceed 6 pounds per acre foot of water. 6. Application by Injection in Water: A solution can be made with Copper Sulfate that can be injected in the water via a piping system. **Q: How much would I need to control algae on a 2 surface acre pond. How many applications?** A: **these instructions are intended to direct the customer how to properly use EPA labeled copper sulfate pentahydrate, registered to control algae in water bodies and systems. LAKES, POTABLE WATER RESERVOIRS, PONDS (Golf, Farm, Fish and Fire), FISH HATCHERIES, AND CROP AND NON-CROP IRRIGATION CONVEYANCE SYSTEMS, DITCHES, CANALS AND LATERALS: Copper Sulfate kills filamentous and planktonic algae in water. Apply at a rate of 3 to 6 pounds per acre foot of water (0.27 ppm to 0.54 ppm copper in the treated water). Apply as a uniform surface spray dissolved in at least 3 to 5 gallons of water using boat, plane or other pressurized spray device. Apply twice yearly or as needed. Determine the number of acre feet of water to be treated. An acre foot of water is equal to one acre of water one foot deep which equals 328,000 gallons or 2,720,000 pounds. An acre foot can also be defined as an area of water 660 feet X 66 feet X 1 foot depth. How to Apply: Copper Sulfate can be applied to impounded water by the following methods: 1. Application by Dragging Under Water: By placing Copper Sulfate in a burlap or finer mesh bag, apply by dragging the bag attached to a boat or float so that bags are suspended in the top foot of water until the crystals are dissolved. Drag the bag of copper sulfate first near the shoreline and continue outward by moving as the boat travels in parallel lines about 20 to 100 feet apart until area has been treated or until 1/3to 1/2 of the surface area has been treated. Continue dragging bag over treated area until the required minimum dose is applied and all copper sulfate is dissolved. Determine the quantity of copper sulfate needed to treat the problem area following directions and precautions on the label. 2. Application by Spraying Solution on Water Surface: Dissolve the minimum required dose of Copper Sulfate in water and spray the solution uniformly over the body of water. When spraying a solution of copper sulfate, mix copper sulfate in sufficient water to thoroughly spray the water surface. While the volume per surface acre depends on the type of spray equipment being used, spray volume should be approximately 20 to 500 or more gallons per acre of surface water. Several types of solutions and spraying equipment may be used. Observe previous cautions on the effect of copper sulfate solution on various metals in spraying containers. 3. Application by Slug Method: Make a dump of Copper Sulfate into the irrigation ditch or lateral at ¼ to 2 pounds per second of water per treatment. Repeat about every 2 weeks as needed. A dump is usually necessary every 5 to 30 miles depending on water hardness, alkalinity, and algae concentration. Copper Sulfate becomes less effective as the bicarbonate alkalinity increases. Its effectiveness is significantly reduced when the bicarbonate alkalinity exceeds about 150 ppm as calcium carbonate (CaCO3). 4. Application by Broadcasting: Dry Copper Sulfate can be broadcast on the water surface using a properly equipped boat. An air blower can be used to discharge these crystals at a specific rate over the surface of the water. When using this method, the wind direction is an important factor. Do not use this method unless completely familiar with this type of application. 5. Application by Spraying from Airplanes and Helicopters: Professional personnel licensed by the State Agricultural Extension Service are allowed to apply dry Copper Sulfate in some states. Rate may not exceed 6 pounds per acre foot of water. 6. Application by Injection in Water: A solution can be made with Copper Sulfate that can be injected in the water via a piping system **Q: willthis control the weed coontail** A: Copper Sulfate is not typically used to treat aquatic plants, but some are labeled to treat the invasives Eurasian watermilfoil (Myriophyllum spicatum) and curly-leaf pondweed (Potamogeton crispus), as well as the native species coontail (Ceratophyllum demersum), naiads (Najas spp.), elodea (Elodea canadensis), sago pondweed (Stuckenia pectinata) and water celery (Vallisneria americana). Determining the correct copper formulation and calculating the proper dosage are key factors in determining how well copper will control undesirable algae and pond weeds. **Q: what is chemically different between this product and the cheaper non EPA registered???? Isn't copper sulfate pentahydrate the same molecular formula?** A: yes it is the same molecular formula BUT the EPA requires us to label our copper sulfate with an EPA approved label as it is being used for algae or root control. Non EPA labeled copper sulfate is the same but we are not allowed to advertise it for use against algae or roots. Non-EPA copper sulfate should be used for any reason but killing roots, fungus, and algae. EPA copper sulfate should be used when you are trying to eliminate or kill an organism of ANY fashion. We are the only EPA compliant company that sells copper sulfate on amazon. ## Frequently Bought Together - Copper Sulfate Small Crystals 50lbs Bag - EPA 99% Pure - Blue Lake and Pond Dye - One Gallon of Professional Lake & Pond Dye - Treats Up to 1 Acre - Royal Blue Color - Safe for Fish, Wildlife, Pets & Children --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pt/products/34180107-copper-sulfate-small-crystals-50lbs-bag-epa-99-pure](https://www.desertcart.pt/products/34180107-copper-sulfate-small-crystals-50lbs-bag-epa-99-pure) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-09-28*