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 39 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
| Funkcionālā grupa | Pierādījumi |
|---|---|
| Methacrylate | 42 |
| Acetate | 42 |
| C-O single bond | 35 |
| Alkyl C-H | 33 |
| Methoxy (OCH3) | 32 |
| Hydroxyl (O-H) | 30 |
| Carbonyl (C=O) | 19 |
| Carboxyl (COOH) | 17 |
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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glycerol
Characteristics of a Plasticized PVA-Based Polymer Electrolyte Membrane and H+ Conductor for an Electrical Double-Layer Capacitor: Structural, Morphological, and Ion Transport Properties DOI: 10.3390/membranes -
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glycerol
Tee 等 - 2017 - Chemical, Physical, and Barrier Properties of Edib DOI: 10.1016/j.jfoodeng.2011.11.010 -
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glycerol
Amri 等 - 2019 - Green Production of Glycerol Ketals with a Clay-Ba DOI: 10.3390/app9214488 -
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glycerol
A Polymer Blend Electrolyte Based on CS with Enhanced Ion Transport and Electrochemical Properties for Electrical Double Layer Capacitor Applications DOI: 10.3390/polym13060930 -
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glycerol
Physical-Mechanical Behavior and Water-Barrier Properties of Biopolymers-Clay Nanocomposites DOI: 10.3390/molecules26216734 -
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glycerol
Electrooxidation of glycerol on platinum nanoparticles: Deciphering how the position of each carbon affects the oxidation pathways DOI: 10.1016/j.electacta.2013.09.032 -
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glycerol
TGA/FTIR study of the MCM-41-catalytic pyrolysis of tobacco and tobacco-glycerol mixtures DOI: 10.1016/j.tca.2014.04.017 -
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glycerol
Kansy 等 - 2022 - Ionic Liquids as Homogeneous Catalysts for Glycero DOI: 10.3390/polym14061200 -
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glycerol
Lajevardipour 等 - 2021 - Spectroscopy of excised skin patches exposed to TH DOI: 10.1364/BOE.424267 -
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glycerol
Lopez-Diaz 等 - 2018 - EFFECT OF SHORT WAVE ULTRAVIOLET RADIATION ON SELE DOI: 10.24275/uam/izt/dcbi/revmexingquim/2018v17n1/Lopez
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