Determination of Monochloroacetic Acid and Dichloroacetic Acid for Quality Control of Acetic Acid Chlorination Industry by Ion Chromatography

✍ Scribed by Feng Qu; Shifen Mou

• Book ID: 102614691
• Publisher: Elsevier Science
• Year: 1999
• Tongue: English
• Weight: 38 KB
• Volume: 63
• Category: Article
• ISSN: 0026-265X
• DOI: 10.1006/mchj.1999.1759

✦ Synopsis

An ion chromatographic method is described for the purpose of quality control in the process of monochloroacetic acid production. Using 2.5 mM NaOH-10% methanol as eluent, the simultaneous determination of acetic acid, monochloroacetic acid, dichloroacetic acid, and Cl Ϫ was obtained in a single run. Monochloroacetic acid and dichloroacetic acid showed good linearity in the range 0.1-20 and 0.15-20 g/ml and correlation coefficients were 0.9999 and 0.9998, respectively. The detection limits (signal-to-noise ratio 3:1) of monochloroacetic acid and dichloroacetic acid were 17 and 25 ng/ml. This simple, sensitive, and time-saving method can be applied for composition analysis in acetic acid chlorination production.