Cobalt Iron Oxide (CoFe2O4) Nanoparticles - Properties, Applications

Topics Covered

Chemical Properties
Physical Properties


Nanoparticles are becoming key components in a wide range of applications today.

This article discusses the properties and applications of cobalt iron oxide nanoparticles. Cobalt and iron belong to Block D, Period 4 element, while oxygen belongs to Block P, Period 2 element. Cobalt can be found in cobaltite, erythrite, glaucodot and skutterudite ores.

Cobalt iron oxide nanoparticles appear as a white powder. They can cause skin and eye irritation.

Chemical Properties

The chemical properties of cobalt iron oxide nanoparticles are outlined in the following table.

Chemical Data
Chemical symbol CoFe2O4
CAS No. 1308-06-1 /7439-89-6
Group Cobalt 9
Iron 8
Oxygen 16
Electronic configuration Cobalt [Ar] 3d7 4s2
Iron [Ar] 3d6 4s2
Oxygen [He] 2s2 2p4
Chemical Composition
Element Content (%)
Cobalt 25.1
Iron 47.6
Oxygen 27.3

Physical Properties

The physical properties of cobalt iron oxide nanoparticles are given in the following table.

Properties Metric Imperial
Density 5.3 g/cm3 0.191lb/in3
Molar mass 240.80 g/mol -


The main applications of cobalt iron oxide nanoparticles are as a nanoscale magnetic material with applications in molecular imaging and drug delivery.

Source: AZoNano


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