Adahill Hoptech Bottle Ferrofluid Magnetic Liquid Display Toy

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Dissolve the soap in water with some acid (sulphuric). The oily substance collected at the top is mostly Oleic acid with stearic acid and linoleic acid. This can be further purified by refrigeration. Ferrofluid is a suspension of small magnetic particles (often magnetite, the magnetic oxide of iron) in a fluid. To avoid the heavy and magnetic particles clumping together or precipitating, they need to be coated in a surfactant. And this only works if the particles are the right size (very small) and you have the right mix of surfactant that works in the carrier fluid (the fluid is usually mineral oil or vegetable oil; alcohols will be a poor choice). I don't have a full answer, but a hint at how to choose your liquid. You want the ferrofluid not to mix with it, so your fluid has to be immiscible with the ferrofluid solvent (or carrier fluid; ferrofluids are colloidal suspensions). In the case of your “FerroFluid EFH-1”, the solvent is a light mineral oil, so you should go with a polar solvent. The good folks at the Univeristat Der Kunste Berlin made a ferrofluid display that can play Nibbles: http://www.digital.udk-berlin.de/en/projects/winter0405/main/hauptprojekt/snoil.html Now add double the volume of Acetone to extract these particle out of the solution. They stay coated with Oleic acid.

The Fidget Tornado | 3D Printed Fidget Cloud | Sensory | ASMR | Tinker Tool | Stress Relieve Desk Toy SCUBA DIVER Epoxy Lamp, Custom Epoxy Resin Lamp, Resin Night Light, Resin Wood Art Lamp, Custom Night Light, Personalized Night Light Hyperi Kinetic Sculpture, Infinity Wooden 3d Kinetic Wall Sculpture, Wood Unique Wall Decor Art, Special Sacred Geometry, Big Infinity Spin I have not yet tried it but there is a youtuber who has made excellent ferrofluid at home. The broad steps are as follows :This is just about the simplest ferrofluid you can make. You'll need two basic materials: magnetic (MICR) ink, and a household oil. I've tried a couple types of oils, and it seemd like a light lubricating oil works best, but any cooking oil will work fine, as well. The amount of oil you have is pretty much the amount of ferrofluid you'll get out--about 50mL is good for starters, but feel free to make as much as you want. To the solution add small amount of Oleic acid and some excess of ammonia which will form ammonium oleate which binds to the magnetic particles and is soluble Whatever form it ultimately takes, who wouldn’t want one of these? This is pretty much the definition of a party piece in every sense of the word. You can make brakes with it by putting some fluid between a wheel's axle and hub. The wheel will spin freely as the fluid acts just as a liquid lubricant, but if you apply a magnetic field, you're suddenly putting a lot of friction of the wheel's rotation.

This was the purification process. Note that you can also use paint thinner in place of petrol and isopropyl alcohol in place of Acetone. heat the solution to about 80 ℃ – 90 ℃ . The ammonium oleate will decompose to again form oleic acid (which is hydrophobic) and it will separate out the magnetic particles from the solution. Dissolve the Oleic acid coated particles in petrol/kerosene and then keep the beaker over a big magnet to precipitate the unwanted big particles. Then Decant the useful Oleic acid coated particles which stayed in the solution A network music streamer is an internet-connected hardware component that streams your favorite digital music using an internet connection. A good network music streamer is easy to use, compatible with several file formats and music streaming services, and will ensure your digital music sounds good to appease both casual listeners and esteemed decibel sages. Glass bottle, ideally with flat sides. If you have a round bottle you may not be able to see the ferrofluid due to diffraction.

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As a result, he’s now considering ways to develop the concept further, with an eye on eventually manufacturing a model he can sell. “We are trying to combine with various speaker types,” Jung explained. “We plan to create a device that can be used by connecting to a high-fidelity speaker rather than a Bluetooth speaker.” Dispose of ferrofluid like you’d dispose of motor oil. Since ferrofluid is mostly motor oil, it’s considered hazardous waste. For small quantities (like 1 batch), seal it in an airtight container and throw it in the trash. For large quantities (like multiple batches), take the ferrofluid to a hazardous waste facility. [7] X Research source For rare earth magnets cheap, hit up a two way radio shop. I'm constantly replacing speakers in portables (uh, walkie-talkies to those not in the industry). The, more or less, dime sized neo magnets are what I use to hold a lot of tools suspended from the four foot fluorescent light over my repair bench. Drivers, wrenches, a hammer... They're small but powerful. Very cool lamp! Great conversation piece. People play with it for hours on end. Size is better (larger) compared to other like items. This is about the same size as a normal lava lamp." Since finding out about ferrofluid, Jung has used it in multiple pieces of art — including an impressive ferrofluid “ Pataphysical Pond,” in which the ferrofluid spreads out like a live oil spill or an ever-shifting Rorschach test. The idea for the speaker came to him when he was listening to music while playing with a ferrofluid display cell he had built. Absentmindedly, he manually began timing the electromagnetic pulses to match the music he was hearing.

I absolutely love this lamp...it makes quite a pair with my ORIGINAL Lava Lamp (1960's model). Only negative is that once you 'become one' with the ferrofluid you're hooked. Two thumbs up for this." As the latest generation of Earfun's Free Pro model, the Free Pro 3 goes all-in on new features while retaining the ultra-compact shape and style that sets the Free Pro apart from larger earbuds. The headlining feature for some Android users is Qualcomm's Snapdragon Sound compatibility, which brings hi-res audio support via the aptX Adaptive Bluetooth codec and higher-quality voice transmission thanks to aptX Voice.

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Harvey Makin Wooden Newton's Cradle Desk Toy - Wonderful piece for the desk of the modern professional - Engraved with your message Now let the particles dry out and then add a few drops of kerosene/petrol to make a concentrated solution. The ferrofluid should be ready now. Ships in 2 business days Patented Technology This is an actual lava lamp with NASA derived nanotechnology inside. The 'lava' is made of a magnetic fluid called ferrofluid. Like an ordinary...

I'm building on-the-fly braille translators and tactile interfaces by sensing if people are moving the fluid: http://www.artiswrong.com/ffb You may have heard about harvesting iron oxide from cassette tapes using acetone. If you’d like to try this method, break apart cassette tapes and soak the tape in acetone for 1 hour outside. Then, use a knife to gently scrape the iron oxide off the tape into a dish. Just keep in mind that many people have tried this method with little success, so it’s a better idea just to buy iron oxide outright. Iron oxide powder creates the magnetism in ferrofluid. Use your electronic scale again to measure your iron oxide. Then, pour the iron oxide into the motor oil. [2] X Research source After he completed his initial prototype, Jung decided to share his speaker with the world. This, in turn, inspired his possible future plans to bring it to market. “I started making it for fun, but after posting it on my social media, [people were telling me to] ‘shut up and take my money,’” he said. Use a magnet to manipulate the ferrofluid. Since iron oxide is magnetic, it will automatically gravitate toward the force of a magnet. Place your magnet underneath the petri dish and move it around. Have fun playing with your ferrofluid! [4] X Research source

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