著者

荻野 圭三 林 信和

出版者

Japan Oil Chemists' Society

雑誌

油化学 (ISSN:18842003)

巻号頁・発行日

vol.26, no.5, pp.278-282, 1977-05-20 (Released:2009-10-20)

参考文献数

11

被引用文献数

2 2

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Calcium ion sequestration capacities have been determined for eleven kinds of organic compounds in comparison with sodium tripolyphosphate (STPP) which is known as the most important detergent builder. The organic compounds used in this study were amino carboxylates (EDTA, NTA), hydroxy carboxylates (sodium lactate, tartarate, citrate, gluconate), and dicarboxylates (sodium oxalate, maleate, malonate, succinate, L-aspargmate). The sequestration capacities of these organic compounds depend on the pH of the solution. The most prominent characteristic of sodium citrate was found in the pH 9 region.