How can you identify CaO from FTIR?
This page summarizes the recurring FTIR evidence reported for CaO, 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 10 cited sources
Quick answer
CaO 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
| 官能基 | 証拠 |
|---|---|
| Hydroxyl (O-H) | 7 |
| Methacrylate | 5 |
| C-O single bond | 5 |
| Acetate | 5 |
| Silicon-oxygen (Si-O) | 4 |
| Water (H2O) | 3 |
| Carbonate | 3 |
| Methoxy (OCH3) | 3 |
Spectrum logic
The logic here is evidence aggregation: repeated literature mentions of CaO, 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
-
信頼度 4.8
CaO
Characterization of quicklime as raw material to hydrated lime: Effect of temperature on its characteristics DOI: 10.1063/1.5066668 -
信頼度 4.8
CaO
Habte 等 - 2019 - Synthesis of Nano-Calcium Oxide from Waste Eggshel DOI: 10.3390/su11113196 -
信頼度 4.8
CaO
Direct Polypropylene and Polyethylene Liquefaction in CO2 and N2 Atmospheres Using MgO Light and CaO as Catalysts DOI: 10.3390/ma15030844 -
信頼度 4.8
CaO
Romeo 和 Fanovich - 2008 - Synthesis of tetracalcium phosphate from mechanoch DOI: 10.1007/s10856-008-3403-8 -
信頼度 3.6
CaO
Natural Clay of Pasaman Barat Enriched by CaO of Chicken Eggshells as Catalyst for Biodiesel Production DOI: 10.9767/bcrec.15.3.8097.662-673) -
信頼度 3.6
CaO
Radev 等 - 2012 - In vitro bioactivity of 70 wt.% SiO2-30 wt.% CaO s DOI: 10.2478/s11532-011-0129-0 -
信頼度 2.8
CaO
Chung 等 - 2013 - Effect of NaF and CaOSiO2 on the Hydrogen Dissolu DOI: 10.2355/isijinternational.53.27 -
信頼度 2.8
CaO
Kim 等 - 2013 - Viscous Behavior of Alumina Rich Calcium-Silicate DOI: 10.2355/isijinternational.53.170 -
信頼度 0.9
CaO
Hydrogen production from autothermal CO2 gasification of cellulose in a fixed-bed reactor: Influence of thermal compensation from CaO carbonation DOI: 10.1016/j.ijhydene.2022.02.018 -
信頼度 0.3
CaO
Saddeek 等 - 2016 - Fabrication and physical characteristics of new gl DOI: 10.1007/s12034-016-1334-4
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