Sulfur — FTIR absorption peaks and assignments

Quick answer

Sulfur 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 Sulfur

Showing the 30 best-supported peaks of 36 total for Sulfur.

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.

এই অ্যাসাইনমেন্টগুলোর পেছনে সাহিত্য

• 1598 cm⁻¹ আত্মবিশ্বাস 1.0

  “The peaks at 1598 and on both with binding energy 168.5eV, which is attributed to sulfur”

  Li 和 Mu - 2005 - The electrochemical activity of sulfonic acid ring DOI: 10.1016/j.synthmet.2004.12.015
• 848 cm⁻¹ আত্মবিশ্বাস 1.0

  “Characteristic peak for sulfur detected in co-doped diamond.”

  Li 等 - 2017 - Synthesis of n-type semiconductor diamond single c DOI: 10.1088/1757-899X/274/1/012131
• 798 cm⁻¹ আত্মবিশ্বাস 1.0

  “The peak around carbon-oxygen bonds in these structures which is mendisplacement occurred for the one at 798 cm -1 730 cm could be attributed to carbon-sulfur stretching vibration.”

  A case study of poly (aryl ether sulfone) hemodialysis membrane interactions with human blood: Molecular dynamics simulation and experimental analyses DOI: 10.1016/j.cmpb.2020.105742
• 2585 cm⁻¹ আত্মবিশ্বাস 1.0

  “Another reduced peak was at the wavenumber of The maximum adsorption capacity was calculated using the UT 2585cm-1 which showed that sulfur groups were also responsible for 175 Y.”

  Nemati 等 - 2019 - Microfluidics combined with ionic gelation method DOI: 10.1016/j.jenvman.2019.02.124
• 403 cm⁻¹ আত্মবিশ্বাস 1.0

  “This hypothesis is supported by the boiling The sequence of the next three exothermic peaks with maxima at 403 440 and ◦C 465 was associated with the vaporization of the gas mixture resulting from thermal point of sulfur being 444.6 °C [37-”

  Photodegradation of Azathioprine in the Presence of Sodium Thiosulfate DOI: 10.3390/ijms23073975
• 1230 cm⁻¹ আত্মবিশ্বাস 1.0

  “keratin;14 the sharper peak at 1230 indicates 20(cid:2) of the down powder is other hand, the peak at some changes in sulfur-containing groups during lower and blunter than that of the down fiber, and the milling process.”

  Xu 等 - 2009 - Characterization of Superfine Down Powder DOI: 10.1002/app.29205
• 2556 cm⁻¹ আত্মবিশ্বাস 1.0

  “cm-1 peak at about 2556.2 turns to be round, showing Attributing to the lone pair electrons in sulfur atom, the lone”

  Specific interaction between fluorine atoms and thiol groups accounting for higher domain purity and photostability in narrowband BHJ systems DOI: 10.1002/polb.24849
• 429 cm⁻¹ আত্মবিশ্বাস 1.0

  “4 cm-1 429 band is related to the vibration of two tetrahedra (e) Geprop 3 that are connected through bridging sulfur at the corner cm-1 and the 376 is a companion band regarded to the tetrahedra.29 vibration of two edge-shared The bands 14”

  De Salvi 等 - 2015 - New Flexible and Transparent Solution-Based German DOI: 10.5935/0103-5053.20150065