Chemistry: The Central Science (13th Edition)

Published by Prentice Hall
ISBN 10: 0321910419
ISBN 13: 978-0-32191-041-7

Chapter 23 - Transition Metals and Coordination Chemistry - Exercises - Page 1033: 23.20b


$Fe_{3}O_{4}$ is ferrimagnetic and $Fe_{2}O_{3}$ is antiferrimagnetic at room temperature.

Work Step by Step

In $Fe_{3}O_{4}$, spins of electrons in Fe 2+ and Fe 3+ are anti parallel and hence cancel out each others effect but Fe 3+ ions are more so it is ferrimagnetic. In $Fe_{2}O_{3}$ spins are parallel hence it is antiferrimagnetic.
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