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p-Cymenesulphonic acid: An organic acid synthesised from citrus waste

Paper ID Volume ID Publish Year Pages File Format Full-Text
55245 47044 2012 6 PDF Available
Title
p-Cymenesulphonic acid: An organic acid synthesised from citrus waste
Abstract

An organic acid, p-cymene-2-sulphonic acid, is synthesised from citrus waste and demonstrated to be comparable to p-toluenesulphonic acid in examples of acid catalysis. Firstly the essential oil found in citrus waste is extracted by either steam distillation or microwave irradiation. Oxidising the limonene in the citrus oil to p-cymene followed by sulphonation gives p-cymene-2-sulphonic acid.

Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (264 K)Download as PowerPoint slideHighlights► Limonene was converted to p-cymene. ► Sulphonation of p-cymene gave p-cymene-2-sulphonic acid (p-CSA). ► p-CSA is demonstrated as being a good acid catalyst. ► Hence citrus waste was valourised into a sulphonic acid.

Keywords
Acid catalysis; Citrus waste; p-Cymene; p-Cymenesulphonic acid; Green chemistry; Limonene
First Page Preview
p-Cymenesulphonic acid: An organic acid synthesised from citrus waste
Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Today - Volume 190, Issue 1, 1 August 2012, Pages 144–149
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis