Rust vs Magnetic Tape: Comparing Properties

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SUMMARY

Rust (Fe2O3) is paramagnetic and differs significantly from black iron oxide (Fe3O4), which is utilized in magnetic recording media. The distinction between these compounds lies in their atomic composition, where one additional iron atom alters the magnetic properties. The discussion also highlights the importance of atomic structure in determining the properties of various compounds, such as the difference between oxygen (O2) and ozone (O3), and the contrasting behaviors of hydrogen peroxide and water due to hydrogen bonding. Understanding these chemical principles is essential for grasping the implications of atomic variations on material properties.

PREREQUISITES
  • Basic knowledge of chemical compounds and their formulas, specifically Fe2O3 and Fe3O4.
  • Understanding of paramagnetism and its implications in material science.
  • Familiarity with hydrogen bonding and its effects on molecular properties.
  • Concepts of atomic structure and how it influences chemical behavior.
NEXT STEPS
  • Research the properties and applications of black iron oxide in magnetic recording media.
  • Study the principles of paramagnetism and its relevance in materials engineering.
  • Explore the role of hydrogen bonding in determining the states of matter, particularly in water.
  • Investigate the chemical differences between similar compounds, such as SO2 and SO3, and their environmental impacts.
USEFUL FOR

Chemists, materials scientists, and anyone interested in the properties of chemical compounds and their applications in technology and environmental science.

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Rust is paramagnetic (attracted to but not maintaining magnetism).
How is this different from the iron oxide used in magnetic recording media?
 
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The diffrience is one iron atom and one oxygen atom. Rust is Fe2O3 and black iron oxide Fe3O4.
Black iron oxide is what they use as the recording media.
Like Oxygen and Ozone oxygen is O2 and ozone is O3. Ozone is toxic to humans and oxygen is essential to life.
Also SO2 and SO3, SO2 is a toxic gas, and SO3 is a volitle solid that reacts with water. Hydrogen peroxide and water is a diffrience of one oxygen atom. Bacteria thrive in water but die in Hydrogen peroxide, hence its use as an antiseptic.
Sodium chloride-NaCl sodium is harmful and chlorine is deadly but combined it forms salt, a nessicary nutrient to the body.
And others are toxic either way like lead and mercury.
Point is one atom can signifigantly change the properties of the compound. But I still don't get why water is a liquid and not a gas, logically it should be a gas, but that is off subject.
 
Last edited:
JGM_14 said:
...But I still don't get why water is a liquid and not a gas, logically it should be a gas, but that is off subject.

The answer is hydrogen bonding. It makes the water molecule 'sticky' and less able to volatalize.
 

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