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CHEMICAL DEMONSTRATION KITS continued on next page.
Chemical Demonstration Kits—
Nanotechnology, continued
Liquid Crystals—
How Do They Do That?
By: The Flinn Staff
Combine two clear liquids and heat
them, then watch as the mixture
produces vivid color changes from
red to green to blue as it cools.
Concepts: Liquid crystals, nanotechnology, phases of matter, light reflection and
transmission.
Catalog No. Description Price/Each
AP7195 Liquid Crystals—How Do They Do That?
Chemical Demonstration Kit
$41.24
Ruby-Red Colloidal Gold
Nanotechnology
By: The Flinn Staff
Reacting a very dilute solution of gold chloride
in water with sodium citrate, a mild reducing
agent, produces elemental gold. The gold particles
are so small, 20 nanometers in diameter,
that the “metallic” gold is uniformly dispersed in
a stunning, transparent, ruby-red solution!
Concepts: Nanotechnology, colloids vs. solutions,
measurements.
See free video at flinnsci.com.
Catalog No. Description Price/Each
AP7117 Ruby-Red Colloidal Gold Nanotechnology—
Chemical Demonstration Kit
$41.55
CHEMISTRY CHEMICAL DEMONSTRATION KITS
Chemical Demonstration Kits—
Oscillating Reactions
FREE VIDEO ABOUT
FLINN OSCILLATING
KITS AT FLINNSCI.COM
Fantastic Four-Color Oscillator
By: The Flinn Staff
Simply measure out and pour together
four solutions, wait about 10 seconds, and
observe the solution flash to green and
then to blue and to purple and to red. And
if that’s not enough—this four-color cycle
will repeat itself for well over an hour!
Concepts: Oscillating reactions,
equilibrium.
See free video at flinnsci.com.
Catalog No. Description Price/Each
AP4833 Fantastic Four-Color Oscillator—Chemical Demonstration Kit $65.95
Fluorescent Oscillating Reaction
By: Rhonda Reist, Olathe North H.S., Olathe, KS
This unique adaptation of a classic oscillating reaction is
due to rising and falling concentrations of ruthenium(II) and
(III) complex ions. Use the beautiful, radiant color changes
to illustrate oxidation states, then sit back and enjoy the
show! Teacher Demonstration Notes, reproducible student
worksheet and answers are included.
Concepts: Oscillating reactions, oxidation–reduction reactions,
kinetics, catalysts.
Note: UV lamp or black light source is required and available separately.
See free video at flinnsci.com.
Catalog No. Description Price/Each
AP7245 Fluorescent Oscillating Reaction—
Chemical Demonstration Kit
$77.83
AP9030 Ultraviolet Lamp, 18" 50.63
Now You See It—
Now You Don’t:
An Oscillating
Chemical Reaction
By: The Flinn Staff
Simply add three white solids to a
colorless solution and presto—the
solution turns orange, then colorless
and orange again. The color of the
solution will oscillate approx imately every 35 seconds for one-half hour or more.
Concepts: Oscillating reactions, reaction mechanisms.
Note: Perform this demonstration in a fume hood or well-ventilated lab.
Catalog No. Description Price/Each
AP4423 Now You See It—Now You Don’t: An Oscillating
Chemical Reaction—Chemical Demonstration Kit
$42.62
The Overhead Oscillating Clock
By: The Flinn Staff
Simply place a Petri dish on the overhead, add three
solutions, and mix. In a short while, blue dots appear on
an orange background. The blue dots expand, new dots
appear, and the dish is filled with concentric blue rings.
Concepts: Oscillating reactions, oxidation–reduction, reaction mechanisms.
Catalog No. Description Price/Each
AP2089 The Overhead Oscillating Clock—
Chemical Demonstration Kit
$34.29
The Yellow and Blue Switcheroo
By: Jim and Julie Ealy, Retired,
The Peddie School, Hightstown, NJ
Three colorless solutions are mixed to produce
a yellow solution and then suddenly the solution
turns blue, then yellow again, etc. The solution
will oscillate between yellow and blue for ten
minutes.
Concepts: Oscillating reactions, kinetics.
Note: Perform this demonstration in a fume hood or well-ventilated lab.
See free video at flinnsci.com.
Catalog No. Description Price/Each
AP8660 The Yellow and Blue Switcheroo—
Chemical Demonstration Kit
$34.88
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