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How To Make Ferrofluid. Ferrofluids are made up of tiny magnetic fragments of iron suspended in oil (often kerosene) with a surfactant to prevent clumping (usually oleic acid). The fluid is relatively easy to make at home yet extremely expensive to buy on-line. How does $165 a liter sound? Pretty bad, right? Read on to learn how to make ferrofluids on the cheap.

There are many commercial applications for ferrofluids--speakers and hard drives being the most common. If you are still wondering what ferrofluids are take a look at this video: DIY Option 1: Magnetic Ink Developer Using a magnetic ink developer (MICR) seems to be the easiest way to make a smooth ferrofluid at home. DIY Option 2: Ferric Chloride The ferric chloride conversion is clever. DIY Option 3: Recycling Audio Cassettes Finally, we have what looks like the most DIY approach--acetone to extract the iron particles from old casette tapes. How to Make Liquid Magnets - Synthesize Ferrofluid. A liquid magnet or ferrofluid is a colloidal mixture of magnetic particles (~10 nm in diameter) in a liquid carrier. The carrier contains a surfactant to prevent the particles from sticking together. Ferrofluids can be suspended in water or in an organic fluid.

A typical ferrofluid is about 5% magnetic solids, 10% surfactant, and 85% carrier, by volume. One type of ferrofluid you can make uses magnetite for the magnetic particles, oleic acid as the surfactant, and kerosene as the carrier fluid to suspend the particles. Several people have asked me if they can make substitutions for the oleic acid and the kerosene. The answer is yes, though changing the chemicals will change the characteristics of the ferrofluid somewhat. You can try other surfactants and other organic solvents. When no external magnetic field is present the fluid is not magnetic and the orientation of the magnetite particles is random. Next Step: Gather Your MaterialsLiquid Magnets Video.

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GmbH - Buy All our compounds online. Exotic Metals vs. Magnet (including uranium) Mercury Hz Slow Motion. Mercury Hz. Cesium Metal. Making Bismuth Crystals. Gallium Metal Fun. Gallium indium eutectic alloy. Gallium [4N], rein 99,99%, 250 g. J h min s jour heure heures Livraison gratuite Voir la description de l'objet Environ : (Saisissez ##1## ou plus) (Saisissez une valeur supérieure à ##1##) Votre enchère maximum : Un autre membre a surenchéri.

Un autre membre a surenchéri en plaçant une enchère automatique. Vous êtes le meilleur enchérisseur pour cet objet ! Vous êtes le premier enchérisseur pour cet objet ! Vous êtes le meilleur enchérisseur pour cet objet, mais un autre membre peut encore surenchérir. Cette vente est presque terminée et vous êtes actuellement le meilleur enchérisseur. Vous êtes le meilleur enchérisseur pour cet objet, mais le prix de réserve n'a pas été atteint. Un autre membre a surenchéri. Vous pouvez encore remporter l'objet ! Votre enchère est inférieure à l'enchère maximum d'un autre membre. Votre enchère a été rejetée, car elle est identique à celle d'un autre membre. Essayez d'augmenter votre enchère maximum. Vous êtes le meilleur enchérisseur! Vous êtes le premier enchérisseur. Votre enchère maximum est désormais de. Periodic table elements metal, G - J eBay Boutiques | THE MISTS OF AVALON.

Liquid Metal Thermal Interface Materials 1 - Amanda Hartnett | INDIUM. Packaging Liquid Metal Thermal Interface Materials - Amanda Hartnett | INDIUM. Liquid metal. Consists of gallium-contained alloys with very low melting points. (Tetraamminelithium (Li(NH 3 ) 4 ) is a conductive gold bronze colored liquid, has a melting point of 89K, 150K below that of Mercury, and is classified as an expanded metal.)

These low melting point alloys are liquid at room temperature. [ 1 ] The standard used to be mercury but gallium -based alloys are being used as a replacement in various applications. Mercury has a high vapor pressure at room temperature. [ 2 ] These alloys have reduced toxicity and a lower vapor pressure than mercury. Alloy systems that are liquid at room temperature have a high degree of thermal conductivity far superior to ordinary non-metallic liquids. [ 3 ] This results in the use of these materials for specific heat conducting and/or dissipation applications.

Other advantages of liquid alloy systems are their inherent high densities and electrical conductivities. Liquid metal is usually packaged in polyethylene bottles. Metal recipie. Chapter 5: Thermodynamics -- A non-toxic liquid metal alloy mercury substitute. Suppose you had a metal alloy that had the advantages of liquid mercury, but without the toxic effects? You could make your own barometers and thermometers, and not worry about calling in a hazardous materials team to clean up after any accidents. You could simply wipe up the mess with a paper towel. You wouldn't have to worry about breathing in toxic mercury fumes, but you could still make neat little electric motors that dip into liquid metal to make their electrical connections. Suppose further, that the metal would stick to glass, so you could paint it on glass to make your own mirrors. Or that it would stick to paper so you could draw your own electric circuits in it? Click on photo for a larger picture In the photo above, I am holding two small vials of liquid metal.

The gallium is liquid because I had the bottle in my shirt pocket, next to my warm body. Because gallium expands when it solidifies (unlike most metals), the vials are only filled half way. ... and so on. Scitoys Catalog. Metallium - - Rare, Exotic Metals and Elements. Metallium, Inc: Rare, Exotic Metals and Elements for Sale - Price List.