--- product_id: 3686340 title: "Black Iron Oxide - Fe3O4 - Synthetic - 1 Pound" brand: "alpha chemicals" price: "Rp583215" currency: IDR in_stock: false reviews_count: 13 category: "Alpha Chemicals" url: https://www.desertcart.id/products/3686340-black-iron-oxide-fe3o4-synthetic-1-pound store_origin: ID region: Indonesia --- # Resealable Freshness Seal Fe3O4 Magnetic Power 0.30 Micron Ultra-Fine Particles Black Iron Oxide - Fe3O4 - Synthetic - 1 Pound **Brand:** alpha chemicals **Price:** Rp583215 **Availability:** ❌ Out of Stock ## Summary > 🧲 Unlock Magnetic Magic with Every Grain! ## Quick Answers - **What is this?** Black Iron Oxide - Fe3O4 - Synthetic - 1 Pound by alpha chemicals - **How much does it cost?** Rp583215 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.id](https://www.desertcart.id/products/3686340-black-iron-oxide-fe3o4-synthetic-1-pound) ## 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 - • **Precision Particle Size:** Ultra-fine 0.30 micron powder ensures smooth mixing and superior performance in pigments and ceramics. - • **Safety Meets Convenience:** Resealable, double-sealed packaging keeps your powder fresh and secure for repeated use. - • **Versatile Industrial Grade:** Perfect for welding, pigments, ceramics, and innovative scientific experiments. - • **Magnetic Mastery in Your Hands:** Harness the power of synthetic magnetite for next-level magnetic putty and slime creations. - • **Trusted Quality & Fast Delivery:** Highly rated for reliability and prompt shipping, making your projects stress-free and on time. ## Overview Black Iron Oxide (Fe3O4) synthetic powder, finely milled to 0.30 microns, is a versatile industrial-grade pigment and magnetic material. Packaged in a resealable, double-sealed bag for freshness and safety, it’s ideal for crafting magnetic putty, pigments, ceramics, and scientific experiments. Trusted for quality and timely delivery, it’s a must-have for professionals and hobbyists alike. ## Description Shipped in a resealable bag that is sealed for safety and freshness. It includes a tear-off tab for easy opening. Ideal for making magnetic putty/slime. Gloves are recommended when using it since it is a very fine pigment powder. Review: Excellent value for money! - Got this for a school science project, and it came exactly as in the product description and photo. We’d ordered two packages, and they came double sealed. What’s more, the individual packages have a resealable zip, so that makes storage within uses that much more convenient, safe and reliable. The particle size is not quite nanometer size, but then that too was mentioned clearly in the product description, and we knew that beforehand. So, no complaints there. Oh, and it was delivered earlier than promised! A pleasant surprise. Review: High quality, reliable seller. - Comes in a re-sealable bag as everything from this company does. I like ordering from these guys, they always deliver on time and their stuff always works. Used this to make some magnetic putty and it turned out great, swallowed those magnets like alien goo. Keep in mind if you will be using this for the same thing the putty doesn't keep. The humidity build up in the jar causes the metal powder to rust. ## Features - Fe3O4, also known as magnetite or Iron (II,III) Oxide - This comes from a synthetic source and is produced by Rockwood - Particle size runs about 0.30 micron - Used in welding, pigments, ceramics, experiments, along with a lot of other uses - Used in magnetic putty, magnetic slime, and other experiments ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B008LEOMJC | | Best Sellers Rank | #114,094 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #96 in Inorganic Reagents | | Date First Available | July 14, 2012 | | Is Discontinued By Manufacturer | No | | Item Weight | 1.1 pounds | | Item model number | C2I_INV_B008LEOMJC_R | | Manufacturer | DYUEOK | | Product Dimensions | 9 x 3.5 x 6 inches | | UPC | 725410978229 | ## Product Details - **Brand:** Alpha Chemicals - **Item Form:** Powder - **Item Volume:** 1 Liters - **Item Weight:** 1.1 Pounds - **Package Information:** Bag ## Images ![Black Iron Oxide - Fe3O4 - Synthetic - 1 Pound - Image 1](https://m.media-amazon.com/images/I/613R-8tA-HL.jpg) ## Questions & Answers **Q: Would this be a good choice for use with demonstrations of magnets and magnetic fields?** A: That depends on what you're trying to do. You won't be able to make a true ferrofluid (that is, a silky smooth, low viscosity, inky black fluid), but you can indeed make a more 'chunky' magnetic fluid. You'll need strong magnets. **Q: Would this be a good choice for making ferrofluid?** A: In short, no! I was mislead by the first answer to this question and bought a bag to play with. The problem is particle size; ferrofluids require particles under about 10 nanometers and these are (claimed to be) 1 micron (1000 nanometers) in size. Far too large for ferrofluids, but I think I'll find something interesting to do with the stuff. **Q: If made into putty or ink, is there a way to get this stuff to attract 'itself'? Ex: Spread the magnetized ink on 2 sheets of paper.** A: It seems to just lay there and do nothing on it's own. I made the putty (be sure to ware gloves when making it - it is OK to handle later) You have to have a really strong magnet to attract it - - it is a fun science lab for kids but the Fe3O4 is not magnetic it is attracted by a magnet. It can be really messy ! **Q: Is this suitable for making cosmetics? Cosmetic grade , if you will?** A: Yes. I actually saw a video where the woman had used for cosmetics. She did much research and found that it was suitable and safe for cosmetic purposes. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Excellent value for money! *by G***E on October 14, 2023* Got this for a school science project, and it came exactly as in the product description and photo. We’d ordered two packages, and they came double sealed. What’s more, the individual packages have a resealable zip, so that makes storage within uses that much more convenient, safe and reliable. The particle size is not quite nanometer size, but then that too was mentioned clearly in the product description, and we knew that beforehand. So, no complaints there. Oh, and it was delivered earlier than promised! A pleasant surprise. ### ⭐⭐⭐⭐⭐ High quality, reliable seller. *by N***B on March 22, 2019* Comes in a re-sealable bag as everything from this company does. I like ordering from these guys, they always deliver on time and their stuff always works. Used this to make some magnetic putty and it turned out great, swallowed those magnets like alien goo. Keep in mind if you will be using this for the same thing the putty doesn't keep. The humidity build up in the jar causes the metal powder to rust. ### ⭐⭐⭐⭐⭐ Very messy but does the job *by A***C on October 18, 2023* Very messy but that cannot be helped, it’s just a characteristic of the product. Does its job. ## Frequently Bought Together - Black Iron Oxide - Fe3O4 - Synthetic - 1 Pound - MIKEDE Strong Rare Earth Neodymium Magnets, Heavy Duty Bar Magnets with Double-Sided Adhesive, Powerful Pull Force, Perfect for Fridge, Garage, Kitchen, Science, Craft, Office, DIY 60x10x3mm 6pack - DIYMAG 1" Cube Neodymium Magnets, One Inch Cube Rare Earth Magnet - Grade N52, Pack of 2 --- ## 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.id/products/3686340-black-iron-oxide-fe3o4-synthetic-1-pound](https://www.desertcart.id/products/3686340-black-iron-oxide-fe3o4-synthetic-1-pound) --- *Product available on Desertcart Indonesia* *Store origin: ID* *Last updated: 2026-05-08*