--- product_id: 4137577 title: "Red Iron Oxide - Fe2O3 - Natural - 5 Pounds" brand: "alpha chemicals" price: "€ 68.61" currency: EUR in_stock: true reviews_count: 13 category: "Alpha Chemicals" url: https://www.desertcart.pt/products/4137577-red-iron-oxide-fe2o3-natural-5-pounds store_origin: PT region: Portugal --- # 100% natural sourced iron oxide 500 mesh ultra-fine 30 micron powder Non-toxic, permanent colorfast pigment Red Iron Oxide - Fe2O3 - Natural - 5 Pounds **Brand:** alpha chemicals **Price:** € 68.61 **Availability:** ✅ In Stock ## Summary > 🔥 Elevate your craft with nature’s most enduring red pigment! 🔥 ## Quick Answers - **What is this?** Red Iron Oxide - Fe2O3 - Natural - 5 Pounds by alpha chemicals - **How much does it cost?** € 68.61 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/4137577-red-iron-oxide-fe2o3-natural-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 - • **Ultra-Fine Precision:** 500 mesh particle size ensures smooth, consistent application for professional-grade results. - • **Safe & Fresh Packaging:** Resealable, safety-sealed bag with tear-off tab keeps your product fresh and ready for every project. - • **Durable & Maintenance-Free:** Permanent, non-fading red iron oxide that never flakes or requires reapplication—built to last decades. - • **Naturally Derived Excellence:** Sourced from natural hematite, offering authentic, eco-friendly pigmentation with slight unique color variations. - • **Versatile Industrial Powerhouse:** Ideal for welding, ceramics, pigments, concrete staining, and more—bulk supply for all your creative and industrial needs. ## Overview Red Iron Oxide (Fe2O3) is a premium, naturally sourced hematite powder with a fine 500 mesh (30 micron) particle size. Perfect for industrial and creative uses like welding, pigments, ceramics, and concrete staining, it offers a non-toxic, permanent, and fade-resistant color. Packaged in a resealable bag for freshness, this 5-pound bulk supply is trusted by professionals seeking durability and eco-friendly quality. ## Description Shipped in a resealable bag that is sealed for safety and freshness. It includes a tear-off tab for easy opening. Review: Great, non-toxic, non-fading coloring - I've written reviews about this for other products that I've mixed it with. Using (red) rust to color concrete or to use it as stain on raw wood is one of the smartest things you can do. I've used it for years and the fact of the matter is it's... rust. It's not paint. It's not going to (ever) flake off or fade. So you never have to reapply it. And it's a wonderful neutral natural color. I buy it in bulk and then mix it with Ferrous Sulfate, (which is a great wood grayer and wood protector) that's safe to be used in planters, even with vegetables, right up against it. Or I mix it with Boiled Linseed oil and you have a wonderful stain with a natural waterproof capability. If you want a maintenance-free (for decades) product and also something that's not toxic to humans. For garden beds or other uses, use red iron oxide. Review: Pretty good stuff - Good quality ## Features - Fe2O3, also known as hematite or Iron(III) oxide - This comes from a natural source so the product has slight variation in color - Particle size runs about 500 mesh (30 microns) - Used in welding, pigments, ceramics, along with a lot of other uses - We sell bulk for so many different uses, we don't include any specific use instructions ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B004OKDTX2 | | Best Sellers Rank | #37,222 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #29 in Inorganic Reagents | | Brand | Alpha Chemicals | | Brand Name | Alpha Chemicals | | Container Type | Bag | | Customer Reviews | 4.6 out of 5 stars 740 Reviews | | Item Form | Powder | | Item Volume | 5 Liters | | Item Weight | 5.1 Pounds | | Manufacturer | Alpha Chemicals | | Model Number | 5RFe | | Molecular Weight | 40 | | Molecular weight | 40 | | Package Information | Bag | | Part Number | 5RFe | | UPC | 725410978380 | | Unit Count | 80 Ounce | | Volume | 5 Liters | ## Product Details - **Brand:** Alpha Chemicals - **Item Volume:** 5 Liters - **Item Weight:** 5.1 Pounds - **Molecular weight:** 40 - **Package Information:** Bag ## Images ![Red Iron Oxide - Fe2O3 - Natural - 5 Pounds - Image 1](https://m.media-amazon.com/images/I/71iYERpp0-L.jpg) ![Red Iron Oxide - Fe2O3 - Natural - 5 Pounds - Image 2](https://m.media-amazon.com/images/I/318FTomt0NL.jpg) ## Questions & Answers **Q: can this be used to make thermite?** A: If you're under 30, go to your local Marine recruiter's office and enlist as an 03xx (infrantry), graduate boot camp, then hope there's a real war while you're in. IF there is, you will very likely get lot's of experience with thermite and it's hotter sibling thermate. I know I and many other Marines did in Fallujah, Iraq during '04-'05 - The most fun city to be in during that time as a Marine. We used thermate often to render useless the countless weapons we obtained off of the enemy. Even if you don't get any combat experience, you'll get some practice with it but that's not as fun. Don't stare directly at the thermate, it's like staring into the sun. **Q: Could you tell me if this is the same as red ochre?** A: Yes, most people would refer to red iron oxide as red ochre **Q: Will this work on hydrangeas to turn blue?** A: Red iron oxide will not work. To turn hydrangeas blue you will need a soil acidifier (some people use iron sulfate, sulfur, aluminum sulfate, or others). The pH of your soil will have to be lower than 5.5 for them to turn blue. **Q: Can this be used for oilskin ?** A: I used it to dye muslin and silk. It did not produce as intense a color as I had hoped. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great, non-toxic, non-fading coloring *by K***R on July 22, 2025* I've written reviews about this for other products that I've mixed it with. Using (red) rust to color concrete or to use it as stain on raw wood is one of the smartest things you can do. I've used it for years and the fact of the matter is it's... rust. It's not paint. It's not going to (ever) flake off or fade. So you never have to reapply it. And it's a wonderful neutral natural color. I buy it in bulk and then mix it with Ferrous Sulfate, (which is a great wood grayer and wood protector) that's safe to be used in planters, even with vegetables, right up against it. Or I mix it with Boiled Linseed oil and you have a wonderful stain with a natural waterproof capability. If you want a maintenance-free (for decades) product and also something that's not toxic to humans. For garden beds or other uses, use red iron oxide. ### ⭐⭐⭐⭐⭐ Pretty good stuff *by B***N on March 10, 2025* Good quality ### ⭐⭐⭐⭐ Good stuff for the use I needed *by S***R on July 29, 2025* Works great I use it in the garden for certain plants and along with electro culture. This is a godsend the past two years I've had the best crop yielded ever. ## Frequently Bought Together - Red Iron Oxide - Fe2O3 - Natural - 5 Pounds - 2 Pack Magnesium Ribbon High Purity Lab Chemicals 2 Rolls 99.95% 25 g Approx 70 ft Awesome Industries - 6 LBS #120 Aluminum Oxide - Fine Sand Blasting Abrasive Media for Blasting Cabinet or Blasting Guns (6 pounds-120 Grit) --- ## 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/4137577-red-iron-oxide-fe2o3-natural-5-pounds](https://www.desertcart.pt/products/4137577-red-iron-oxide-fe2o3-natural-5-pounds) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-05-18*