洗剤のビルダーに関する研究 (第1報)
有機カルボン酸化合物のカルシウムキレート能に関する研究
1977 年 26 巻 5 号 p. 278-282
詳細
1977 年 26 巻 5 号 p. 278-282
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.
