How can you identify glycerol from FTIR?
This page summarizes the recurring FTIR evidence reported for glycerol, 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 30 cited sources
Quick answer
glycerol 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
Possible materials / groups
| Functional group | Evidence |
|---|---|
| Methacrylate | 32 |
| Acetate | 32 |
| C-O single bond | 30 |
| Methoxy (OCH3) | 26 |
| Alkyl C-H | 25 |
| Hydroxyl (O-H) | 25 |
| Carboxyl (COOH) | 11 |
| Carbonyl (C=O) | 10 |
Spectrum logic
The logic here is evidence aggregation: repeated literature mentions of glycerol, 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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confidence 4.0
glycerol
Brza 等 - 2021 - Characteristics of a Plasticized PVA-Based Polymer DOI: 10.3390/membranes -
confidence 4.0
glycerol
Development and characterization of a novel biodegradable edible film obtained from psyllium seed (Plantago ovata Forsk) DOI: 10.1016/j.jfoodeng.2011.11.010 -
confidence 4.0
glycerol
Insight into the Effect of Glycerol on Dielectric Relaxation and Transport Properties of Potassium-Ion-Conducting Solid Biopolymer Electrolytes for Application in Solid-State Electrochemical Double-Layer Capacitor DOI: 10.3390/molecules28083461 -
confidence 4.0
glycerol
Physical-Mechanical Behavior and Water-Barrier Properties of Biopolymers-Clay Nanocomposites DOI: 10.3390/molecules26216734 -
confidence 4.0
glycerol
Kansy 等 - 2022 - Ionic Liquids as Homogeneous Catalysts for Glycero DOI: 10.3390/polym14061200 -
confidence 4.0
glycerol
Lajevardipour 等 - 2021 - Spectroscopy of excised skin patches exposed to TH DOI: 10.1364/BOE.424267 -
confidence 4.0
glycerol
EFECTO DE LA RADIACIÓN ULTRAVIOLETA DE ONDA CORTA SOBRE ALGUNAS PROPIEDADES DE PELÍCULAS COMESTIBLES ELABORADAS CON JUGO DE GRANADA Y QUITOSANO DOI: 10.24275/uam/izt/dcbi/revmexingquim/2018v17n1/Lopez -
confidence 4.0
glycerol
Mechanistic aspects of glycerol electrooxidation on Pt(111) electrode in alkaline media DOI: 10.1016/j.elecom.2017.11.027 -
confidence 4.0
glycerol
Electrocatalytic Oxidation of Glycerol on Platinum Single Crystals in Alkaline Media DOI: 10.1002/celc.201900311 -
confidence 4.0
glycerol
Edible Films from Carrageenan/Orange Essential Oil/Trehalose—Structure, Optical Properties, and Antimicrobial Activity DOI: 10.3390/polym13030332
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