GRUPO FUNCIONAL FTIR

Phosphorus — FTIR absorption peaks and assignments

These are the characteristic FTIR wavenumbers where Phosphorus tends to absorb, compiled from published literature and ranked by supporting evidence. Each assignment is traceable to a source (DOI) and cross-validated against our 130,000+ reference spectra and knowledge graph.

Backed by 8 cited sources

Quick answer

Phosphorus is usually assigned by looking for a recurring cluster of characteristic peaks rather than one exact textbook number. The table below shows where the literature most often places this group in FTIR, ranked by accumulated evidence.

Characteristic FTIR peaks for Phosphorus

Número de onda (cm⁻¹) Fatos de suporte Fontes citadas Maior confiança
1240 10 10 1,0
1080 6 6 1,0
1020 6 5 1,0
600 5 5 1,0
1200 5 5 1,0
960 5 5 1,0
1100 5 5 1,0
1030 5 4 1,0
560 5 4 1,0
1035 4 4 1,0
1092 4 4 1,0
1300 4 4 1,0
1050 4 4 1,0
800 4 4 1,0
1034 4 3 1,0
1225 4 3 1,0
1040 4 2 1,0
1090 4 2 1,0
1078 3 3 1,0
1238 3 3 1,0
1024 3 3 1,0
532 3 3 1,0
970 3 3 1,0
608 3 3 1,0
473 3 3 1,0
1025 3 3 1,0
1000 3 3 1,0
1070 3 3 1,0
1084 3 2 1,0
1260 3 2 1,0

Showing the 30 best-supported peaks of 221 total for Phosphorus.

Possible materials

Material Picos de suporte Fontes citadas
calcium phosphate 1070, 1149, 600 1
hydroxyapatite 1620, 1639, 1630 1
apatite 3053, 1640, 2009 1
dentin 575, 1740, 1632 1

Spectrum logic

A functional-group assignment becomes more reliable when several expected bands appear together. Use this page to find the strongest-supported peaks, then confirm that the same sample exhibits a coherent pattern rather than a single isolated hit.

Real-world usage

These pages are useful for unknown material analysis, peak explanation in reports, polymer troubleshooting, and verifying whether a candidate material family is chemically plausible.

Common mistakes

  • Using one functional-group page as a complete material verdict without checking the rest of the spectrum.
  • Assuming the strongest band is always the most diagnostic one.
  • Forgetting that processing, additives, aging, and mixtures can shift or broaden expected peaks.

Verification advice

Use DSC, GC-MS, or TGA when several material families share similar bands or when mixture effects make the FTIR assignment uncertain.

Literatura por trás destas atribuições

See Phosphorus in your own spectrum

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