FTIR ANALYSIS REPORT

FTIR Spectrum Analysis Report

No.: 20250606233414737488359 Date: 2025-06-06 15:42:24 Reported by: FTIR.fun Contact: [email protected]

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Top15

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Infrared spectrum comparison chart. Analysis result: oxygenated organic material with aliphatic C-H, O-H/N-H, and carbonyl functionality.

The ordinary FTIR evidence does not support a firm assignment to Poly(vinyl chloride) as a specific material. The spectrum is better described more broadly as an oxygenated organic material showing aliphatic C-H bands, a strong carbonyl band, and O-H/N-H stretching, with possible minor halogen-related contribution in the fingerprint region. Because the library match quality is effectively non-discriminating and no direct or related literature evidence narrows the result, a broad chemically supported direction is the most defensible conclusion

Library spectrum Interactive sample curve Move the pointer to show the vertical guide line.

Top 15 candidates

Reference library candidates

Rank	Match %	Compound Name	Formula / SMILES	Library preview	Action
Reference candidates load with this Top-15 workbench.

Based on the library matches and evidence above.

Conclusion

oxygenated organic material with aliphatic C-H, O-H/N-H, and carbonyl functionality

General assessment

#48491 Initial rank 1 Current rank 1 Library lead match 0.0%

Conclusion

1721 cm-1 supports the presence of carbonyl functionality.
3327, 3624, and 3639 cm-1 support hydroxyl and/or amine-type stretching rather than a simple hydrocarbon-only material.
2856 and 2928 cm-1 support aliphatic C-H bonds.

Main limitation

A specific assignment to Poly(vinyl chloride) is limited because the spectrum contains strong O-H/N-H and carbonyl features that are not explained by neat PVC alone.

Evidence

Key evidence

لائبریری معروف مماثلت

Poly(vinyl chloride) #48491 | match 0.0%

مواد کی سمت

oxygenated organic material with aliphatic C-H, O-H/N-H, and carbonyl functionality The ordinary FTIR evidence does not support a firm assignment to Poly(vinyl chloride) as a specific material. The spectrum is better described more broadly as an oxygenated organic material showing aliphatic C-H bands, a strong carbonyl band, and O-H/N-H stretching, with possible minor halogen-related contribution in the fingerprint region. Because the library match quality is effectively non-discriminating and no direct or related literature evidence narrows the result, a broad chemically supported direction is the most defensible conclusion.

Support

Evidence supporting the conclusion

Only sample-relevant statements that support the present conclusion are shown here.

1721 cm-1 supports the presence of carbonyl functionality.
3327, 3624, and 3639 cm-1 support hydroxyl and/or amine-type stretching rather than a simple hydrocarbon-only material.
2856 and 2928 cm-1 support aliphatic C-H bonds.
1062-1252 cm-1 fingerprint bands are compatible with C-O single-bond-containing organic material.
The leading library candidates include oxygenated vinyl polymers as well as chlorinated vinyl materials, which is at least broadly consistent with a functionalized organic/polymeric sample.
The sample shows a strong band at 1721 cm-1, consistent with a carbonyl-containing component such as an ester, acid, aldehyde, ketone, or oxidized additive-containing organic material.
Bands at 3327, 3624, and 3639 cm-1 support O-H and/or N-H stretching, indicating hydroxylated, hydrated, or otherwise hydrogen-bonding functionality.
Bands at 2856 and 2928 cm-1 support aliphatic C-H stretching.
Bands at 1062, 1074, 1117, and 1252 cm-1 are consistent with C-O containing functionality in the fingerprint region.
The 679 cm-1 band can be compatible with C-Cl or certain out-of-plane/ring-region modes, but by itself it is not sufficient to establish a chlorinated polymer identity.
The Top-15 library pattern contains several vinyl-based and oxygenated polymer candidates, but all reported similarities are 0.000, so the retrieval pattern is too weak to support a specific entity claim.

Limitations

Evidence that limits the conclusion

A specific assignment to Poly(vinyl chloride) is limited because the spectrum contains strong O-H/N-H and carbonyl features that are not explained by neat PVC alone.
The library result is intrinsically weak: all top candidates have similarity values of 0.000, so the ranking does not provide reliable discriminating support.
The Top-15 consensus note of nitrogen heterocycle / n h is not convincingly supported by the observed peak pattern and is inconsistent with the leading named PVC candidate.
The current spectrum could represent a functionalized polymer, a polymer blend, an oxidized material, or a material containing additives rather than a single neat substance.
The 679 cm-1 band leaves open the possibility of a chlorinated component, but the present evidence does not show that this is the dominant chemistry.
Without stronger reference agreement, the carbonyl-bearing and O-H/N-H-bearing components cannot be assigned to a specific polymer class with confidence.

Recommendation

Suggested next verification

Re-run the FTIR after checking background subtraction and ATR contact quality, since the present library discrimination is effectively absent.
Inspect the full spectrum for characteristic chlorinated polymer bands in the 600-700 cm-1 region and compare against a verified PVC reference measured under the same conditions.
Check whether the broad high-wavenumber features arise from moisture, alcohol functionality, or amine-containing additives by drying the sample and reacquiring the spectrum.
If this is a polymer sample, use complementary methods such as DSC/TGA for formulation screening and, if chlorine is suspected, XRF or elemental analysis to verify halogen content.

Peak analysis

Detected peaks and interpretation

★ = Literature-supported peak assignment.

Index	Characteristic	Wavenumber	Absorbance	Evidence	One-line interpretation	Citation	Confidence
1	·	679	1.00	-	-	-	-
2	·	1117	0.74	-	-	-	-
3	·	1062	0.71	-	-	-	-
4	·	1074	0.71	-	-	-	-
5	·	1721	0.47	-	-	-	-
6	·	1252	0.44	-	-	-	-
7	·	3327	0.23	-	-	-	-
8	·	2928	0.23	-	-	-	-
9	·	1447	0.18	-	-	-	-
10	·	1528	0.18	-	-	-	-
11	·	2856	0.18	-	-	-	-
12	·	3624	0.11	-	-	-	-
13	·	3639	0.11	-	-	-	-

Appendix

Sample information and raw spectrum

Original uploaded spectrum for reference and verification.

Baseline correction method: Asymmetric Least Squares Smoothing

The wavelength range for analysis(cm-1): [(650, 4000)]

Raw spectrum without baseline correction or other processing:

oxygenated organic material with aliphatic C-H, O-H/N-H, and carbonyl functionality

FTIR Spectrum Analysis Report

Similarity-ranked Top-15 library comparison

Reference library candidates

oxygenated organic material with aliphatic C-H, O-H/N-H, and carbonyl functionality

Key evidence

Evidence supporting the conclusion

Evidence that limits the conclusion

Suggested next verification

Detected peaks and interpretation

Sample information and raw spectrum

تبصرے اور فالو اپ ثبوت

آن لائن سپورٹ

oxygenated organic material with aliphatic C-H, O-H/N-H, and carbonyl functionality

Similarity-ranked Top-15 library comparison

Reference library candidates

oxygenated organic material with aliphatic C-H, O-H/N-H, and carbonyl functionality

Key evidence

Evidence supporting the conclusion

Evidence that limits the conclusion

Suggested next verification

Detected peaks and interpretation

Sample information and raw spectrum

تبصرے اور فالو اپ ثبوت

اس زمرے میں دیگر تجزیے

آن لائن سپورٹ

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