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VOL. 13, ISSUE 1 (2026)
Chemical composition of Indigo dye
Authors
Ioana Stanciu
Abstract
Indigo is a natural dye widely used in the
textile industry and in various chemical applications, due to its stability and
color intensity. In this study, the structural composition of indigo was
investigated by FTIR spectroscopy, with the aim of identifying the functional
groups and characteristic chemical bonds. The FTIR spectrum revealed specific
bands corresponding to carbonyl (C=O), amine (N–H) and alkene (C=C) groups,
confirming the molecular structure of the dye. The analysis demonstrated that
FTIR is a rapid, non-destructive and efficient method for the qualitative
characterization of indigo, being useful in quality control and research of
natural dyes.
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Pages:16-17
How to cite this article:
Ioana Stanciu "Chemical composition of Indigo dye". International Journal of Multidisciplinary Research and Development, Vol 13, Issue 1, 2026, Pages 16-17
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