Carbonate — FTIR absorption peaks and assignments
These are the characteristic FTIR wavenumbers where Carbonate 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 320,000+ reference spectra and knowledge graph.
Backed by 8 cited sources
Quick answer
Carbonate 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 Carbonate
| Wavenumber (cm⁻¹) | Supporting facts | Cited sources | Top confidence |
|---|---|---|---|
| 875 | 17 | 16 | 1.0 |
| 1400 | 17 | 15 | 1.0 |
| 712 | 15 | 15 | 1.0 |
| 713 | 14 | 14 | 1.0 |
| 873 | 11 | 10 | 1.0 |
| 1450 | 10 | 9 | 1.0 |
| 870 | 8 | 8 | 1.0 |
| 1420 | 8 | 7 | 1.0 |
| 876 | 6 | 6 | 1.0 |
| 872 | 6 | 5 | 1.0 |
| 1415 | 6 | 5 | 1.0 |
| 1430 | 6 | 4 | 1.0 |
| 1410 | 5 | 5 | 1.0 |
| 1630 | 5 | 5 | 1.0 |
| 1380 | 5 | 5 | 1.0 |
| 711 | 5 | 4 | 1.0 |
| 1500 | 5 | 4 | 1.0 |
| 1440 | 5 | 4 | 1.0 |
| 1411 | 4 | 4 | 1.0 |
| 700 | 4 | 4 | 1.0 |
| 1421 | 4 | 4 | 1.0 |
| 1456 | 4 | 4 | 1.0 |
| 865 | 4 | 4 | 1.0 |
| 1447 | 4 | 4 | 1.0 |
| 879 | 4 | 3 | 1.0 |
| 1460 | 4 | 3 | 1.0 |
| 2512 | 3 | 3 | 1.0 |
| 3232 | 3 | 3 | 1.0 |
| 1370 | 3 | 3 | 1.0 |
| 710 | 3 | 3 | 1.0 |
Showing the 30 best-supported peaks of 350 total for Carbonate.
Possible materials
Spectrum logic
A functional-group assignment becomes more confident 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.
Literature behind these assignments
-
715 cm⁻¹ confidence 1.0
“LLM confirmed rule peak-group candidate”
Awonusi 等 - 2007 - Carbonate assignment and calibration in the raman DOI: 10.1007/s00223-007-9034-0 -
1510 cm⁻¹ confidence 1.0
“The carbonate band at 1510 Powder X-ray diffraction on sample Alb1-5 yielded evidence”
Solubility of H2O and CO2 in ultrapotassic melts at 1200 and 1250 C and pressure from 50 to 500 MPa DOI: 10.2138/am.2009.2796 -
930 cm⁻¹ confidence 1.0
“S1 S1-12h S1-24h S1-48h S1-72h S1-1 week Remarks 461.1 461.1 461.1 450.9 471.3 420.4, 416.1 Peak intensity changes as hydration time increases 522.2 522.2 527.3 527.3 522.2 532.4 Peak intensity changes as hydration time increases SO42(cid:2”
Theoretical and experimental study of structures and properties of cement paste: The nanostructural aspects of C–S–H DOI: 10.1016/j.jpcs.2011.05.001 -
1443 cm⁻¹ confidence 1.0
“Besides already exchanged with the nitrate ions that initially cm-1 that, a peak of 1443 refers to the carbonate stretching occupied the interlayer host.”
Synthesis and Characterization of 2,4-Dichlorophenoxypropanoic Acid (2,4-DP) Herbicide Interleaved into Calcium-Aluminium Layered Double Hydroxide and the Study of Controlled Release Formulation DOI: 10.22146/ijc.73546 -
1396 cm⁻¹ confidence 1.0
“The peak in the area of 1396 attributes to carbonate.”
Fourier Transform Infrared (FTIR) spectroscopy of paraffin and deparafinnized bone tissue samples as a diagnostic tool for Ewing sarcoma of bones DOI: 10.1016/j.infrared.2017.07.017 -
959 cm⁻¹ confidence 1.0
“or Raman cm-1 In fully mature minerals, the carbonate ions may subabsorption peak at 959 assigned to the stretching stitute two anionic sites of the apatite structure, either the vibration of phosphate of HA was also observed in cal-”
Chen 等 - 2006 - Corneal calcification chemical composition of cal DOI: 10.1007/s00417-005-1191-0 -
873 cm⁻¹ confidence 1.0
“The black line cm-1 ((cid:2) ((cid:2) 959 phosphate stretching) and 873 carbonate mode) displays pixel locations from which the single pixel IR spectra”
FT-IR microscopic imaging of calcified deposit of rotator cuff tendonitis: A pilot study and a randomised identification of the compositional components after extrusion from tendon to muscle DOI: 10.1016/j.vibspec.2011.06.004 -
1578 cm⁻¹ confidence 1.0
“ı(OH)=1225cm-1][12].Additionally,twoweakbandsat1578and 1310cm-1 corresponding to bidentate carbonate surface groups 3=) (b-CO [12] may also be observed.”
Collins 等 - 2010 - Effect of gallia doping on the acid-base and redox DOI: 10.1016/j.apcata.2010.08.050
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