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Calcium Chelating Sugar‐Based Surfactants for Hard‐Water Detergency
Author(s) -
Ferlin Nadège,
Grassi Diego,
Ojeda Carlos,
Castro Mariano J. L.,
FernándezCirelli Alicia,
Kovensky José,
Grand Eric
Publication year - 2012
Publication title -
journal of surfactants and detergents
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.349
H-Index - 48
eISSN - 1558-9293
pISSN - 1097-3958
DOI - 10.1007/s11743-011-1310-3
Subject(s) - chemistry , chelation , pulmonary surfactant , sugar , divalent , calcium , extraction (chemistry) , chemical engineering , chromatography , inorganic chemistry , organic chemistry , biochemistry , engineering
Abstract Hard water can decrease the detergency efficiency of surfactants due to a significant concentration of divalent cations as Ca 2+ or Mg 2+ . The formulation of a cleaning detergent must be modified and it is usual to add more surfactants or a huge quantity of sequestrating agents. This supplementary addition can have deleterious effects on the environment and increases the price of the formulation. A surfactant, presenting both detergency capacities in the presence of Ca 2+ and Ca 2+ chelating properties, would be of great interest. In this paper, we report on Ca 2+ extraction with sugar‐based chelating surfactants using an experimental device, namely a flotation column, as both chelating properties and foaming properties in the presence of Ca 2+ are important in the flotation process as well as in detergency. Among all the sugar‐based surfactants tested, a few of them were able to extract calcium and thus demonstrated the expected characteristics.