Page 200 - Demo

Practical Applications of Chemistry
Modern Materials
Amazing Modern Materials— Multi-Demonstration Kit
Bring amazing real-world materials into your labo- ratory! This multi-demonstration kit includes:
• Ferrofluid—A magnetic fluid created by extremely small Fe3O4
particles. Dramatically demonstrate the unique physical properties of ferrofluid and how magnetic nanoparticles respond to a magnetic field. This application was invented by NASA to control liquids in space!
• Liquid crystals—Matter that behaves as both a liquid and a solid! Liquid crystal molecules move independently like a liquid and also organize themselves like a crystalline solid. Temperature changes the molecular alignment of the crystals creating different colors at vari- ous temperatures. Used in liquid crystal displays (LCD) for laptops, optical imaging, and whimsical items such as mood rings.
• Nitinol wire—This nickel–titanium metal alloy has a “memory!” Construct the desired shape of the nitinol wire in cold water. Then, place it in hot water and watch it quickly and forcefully spring back to its original shape.
Includes a reproducible student worksheet and detailed Instructor’s Notes with instructions, tips, and answers to all questions.
Concepts: Nanotechnology, magnetic properties, colloids vs. solutions, liquid crystals, diffraction, metal alloys, crystal structures.
Time Required: 40 minutes
Materials Provided: Ferrofluid, cholesteryl oleyl carbonate, cholesteryl pelargonate, contact paper, aquarium thermometer, vials, nitinol wire.
1-800-452-1261
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Amazing
Modern Materials— Multi-Demonstration Kit AP7531
Catalog No.
Description
Price/Each
AP7531
Amazing Modern Materials— Multi-Demonstration Kit
$86.00
Nitinol “Live” Wire
Wire with a memory! Nitinol wire was discovered in 1961 and has “shape” memory. When placed in cold water it can be bent into any shape. Put into hot water, it springs back to its original shape. Shape memory alloys are discussed in the publication provided. Price is per inch; may be purchased in any length requested.
Magnetic Field Viewing Film
With the reusable Magnetic Field Viewing Film, easily see the magne- tized regions of various materials. You will love seeing how different magnets are produced. The small green film turns black when magne- tized material is placed beneath it. Show how fridge magnets and magnetic tape produce a particularly interesting pattern. How many types of magnets can you find to examine? A simple way to spark curiosity! 4" x 3".
Nitinol “Live” Wire AP1937
Catalog No.
Description
Price/Inch
AP1937
Nitinol “Live” Wire
$1.75
Catalog No.
Description
Price/Each
AP9683
Magnetic Field Viewing Film
$8.50
MODERN MATERIALS continued on next page.
Magnetic Field Viewing Film AP9683