The performance test of fatty acid methyl ester sulfonates and application in the dishwashing liquid detergent

• Published in: Journal of dispersion science and technology 2018-10, Vol.39 (10), p.1422-1426
• Main Authors: Tai, Xiu-mei, Song, Jin-yu, Du, Zhi-ping, Liu, Xiaoying, Wang, Tianzhuang, Wang, Guoyong
• Format: Article
• Language: English
• Subjects: Benzene; Calcium; Calcium soap dispersing ability; Detergent industry; Detergents; dishwashing detergent; Dispersion; Esters; fatty acid methyl ester sulfonate; Fatty acids; Foaming; Formulations; hydrolytic stability; Performance tests; Stability; Storage temperature; Sulfonates; Titration
• ISSN: 0193-2691; 1532-2351
• DOI: 10.1080/01932691.2017.1409633

Hydrolytic stability, foaming power and foam stability, calcium soap dispersing ability and stability in hard water of fatty acid methyl ester sulfonate (MES) were measured by potentiometric titration, Ross-Miles foam instrument, improved acid titration and turbidimetric test, respectively. The dishwashing detergent formulations containing MES were designed and stability and detergency of dishwashing detergents have been tested. The results showed that when storage temperature was 45°C, MES in pH 4.5 ∼ 9 was stable, disodium α-sulfonated fatty acid esters content increased at pH 10, hydrolysis rate was accelerated; foaming power of MES was lower than sodium linear alkyl benzene sulfonate (LAS) and the foam stability was equivalent to that of LAS; MES showed very excellent calcium soap dispersing ability, calcium soap dispersing amount of MES was 2.5 g calcium soap /1 g MES and LAS was 0.34 g /1 g LAS; differential stability of MES in hard water was , and LAS was ; the performance test results of dishwashing detergent products partially substituted LAS by MES can both meet the requirements of the Chinese national standard.