Composition Characterization of Fatty Acid Zinc Salts by Chromatographic and NMR Spectroscopic Analyses on Their Fatty Acid Methyl Esters

Figure 1

Comparison of NMR spectra using CDCl₃ of methyl-esterified products obtained from zinc stearate in various reaction conditions: a (0.86 ppm), b (1.17–1.36 ppm), c (1.62 ppm), d (2.30 ppm), d′ (2.35 ppm), and e (3.67 ppm).

(a)

(b)