Comparing the Specific Heat of Metals I
Comparing the Specific Heat Of Metals II
Paramagnetism of Transition Metal Salts
Computer NaCl Crystal Cleavage
Octahedral, Hexagonal, and Tetrahedral Shapes
Thermoluminescent Sodium Chloride
Jars of Sand Representing Electron Flow in a Band
Temperature Dependence on Resistance
Thermal Conductivity of Metals
Glycerine Tube Representing Hole Energies
Counting Photons Using a Solar Cell
Effect of Pressure on Melting Point of Ice
Fixed Ball and Stick Crystal Models
Will Tissue Hold Water? Interfacial Tension
Photoluminescence of a Vinyl Sheet
Paramagnetism of Transition Metal Salts
Description: Small vials of various salts are suspended by a thread. They can be attracted by a strong magnet. This experiment may also be performed on a tray under a document camera with a hand held magnet.
This demonstration is also available on video and JCE “Chemistry Comes Alive!” Vol. 2 CD-Rom
Source: UW Card Catalog
Year: 1999 Vol: 2 Page: 1311
Keywords: Metal salts, Magnet, Oxidation state, Crystal structure, Valence
Rating: 
Hazard: Some
- Uses sealed containers
- Strong magnetic field
- Acute toxicity hazard
- Carcinogenicity hazard
- Aquatic toxicity hazard
- Germ cell mutagenicity hazard
Effectiveness: Average
- Results are observable with guidance
- Good reliability
- Demo somewhat connected conceptually with course material
- Time to results is low
- System contrast is low
Difficulty: Medium
- Manipulation with strong magnetic fields
- Precise manipulations
- Demos in which display is used
- Simple procedures
Safety Precautions:
- Eye protection required
- Avoid contact with ferro magnetic objects
- Absorbent material on hand
- Use UL approved three-prong plug and outlet
Class: Bonding, Atomic Structure, Solid State Chemistry
Division: General, Inorganic Chemistry, Solid State Chemistry