FTIR MATERIAL QUESTION

How can you identify Fe3O4 from FTIR?

This page summarizes the recurring FTIR evidence reported for Fe3O4, including the most frequent peaks, supporting functional groups, and literature-backed interpretation patterns. It is a structured evidence page, not a claim of automatic single-spectrum certainty.

Backed by 44 cited sources

Quick answer

Fe3O4 is usually reported with a recurring pattern of peaks and functional-group evidence. The most useful approach is to cross-check at least two characteristic peaks before treating it as a match, then verify whether the full spectrum still fits the same material family.

Peak interpretation

Vârf (cm⁻¹) Evidence count
2358 15
1673 12
2923 12
1470 9
1070 8
1739 8
528 8
1375 7

Possible materials / groups

Grup funcțional Dovezi
Hydroxyl (O-H) 38
Metal oxygen 28
Alkyl C-H 24
Amide 13
Methacrylate 13
Acetate 13
N h 11
Silicon-oxygen (Si-O) 9

Spectrum logic

The logic here is evidence aggregation: repeated literature mentions of Fe3O4, repeated peak positions, and repeated functional-group associations. A strong material hypothesis should still be supported by multiple peaks that agree with each other, not by one headline band alone.

Real-world usage

This page is designed for polymer identification, incoming-material QC, unknown plastic analysis, recycled-content review, and literature-backed interpretation of reference spectra.

Common mistakes

  • Calling a material match too early because one famous peak is present.
  • Ignoring sample prep, fillers, oxidation, water, or additives that can change the apparent pattern.
  • Using literature evidence without checking whether your own sampling mode and spectrum quality are comparable.

Verification advice

Use DSC, GC-MS, or TGA to validate the material hypothesis when the peak pattern is ambiguous or mixed.

Literature behind this page

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