How can you identify silica from FTIR?
This page summarizes the recurring FTIR evidence reported for silica, 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 96 cited sources
Quick answer
silica 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
| Gruppo funzionale | Evidenza |
|---|---|
| Silicon-oxygen (Si-O) | 138 |
| Silicon (Si) | 110 |
| Hydroxyl (O-H) | 76 |
| Siloxane (Si-O-Si) | 76 |
| Silanol (Si-OH) | 60 |
| Alkyl C-H | 49 |
| Methacrylate | 30 |
| Acetate | 30 |
Spectrum logic
The logic here is evidence aggregation: repeated literature mentions of silica, 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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affidabilità 6,1
silica
De 等 - 2000 - Hydrolysis-condensation reactions of TEOS in the p DOI: 10.1039/B003221M -
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silica
Ismail 等 - 2015 - Effect of Radiation on Properties of ENRPVCSiO2 DOI: 10.1063/1.4931308 -
affidabilità 6,1
silica
Jeon 等 - 2012 - Quantitative Analysis of Silanization Degree of Si DOI: 10.7317/pk.2012.36.3.372 -
affidabilità 6,1
silica
Pisciella 和 Pelino - 2005 - FTIR spectroscopy investigation of the crystallisa DOI: 10.1016/j.jeurceramsoc.2004.06.012 -
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silica
Rovedder Junior 等 - 2021 - Physical and chemical properties of Pinus elliotti DOI: 10.18671/scifor.v49n130.24 -
affidabilità 6,1
silica
Nanostructured Silicon Derived from an Agricultural Residue Bagasse Ash via Magnesiothermic Reduction Method DOI: 10.3390/coatings13020221 -
affidabilità 6,1
silica
Abouzeid 等 - 2022 - PREPARATION AND PROPERTIES OF NOVEL BIOCOMPATIBLE DOI: 10.1615/CritRevBiomedEng.v40.i5.10 -
affidabilità 6,1
silica
Comparative study of core-shell nanostructures based on amino-functionalized Fe3O4@SiO2 and CoFe2O4@SiO2 nanocomposites DOI: 10.1016/j.jallcom.2018.06.246 -
affidabilità 6,1
silica
Azizova 等 - 2014 - Investigation of chemical transformations of thiop DOI: 10.1186/1556-276X-9-234 -
affidabilità 6,1
silica
Drug Release of Hybrid Materials Containing Fe(II)Citrate Synthesized by Sol-Gel Technique DOI: 10.3390/ma11112270
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