N-acyl-1-amino alkane-1,1-diphosphonic acids or their alkali metal salts are highly effective scale and deposit formation preventing, metal ion complexing, sequestering, and anti-corrosive agents which can be used with great advantage in washing and cleaning fluids and detergent preparations. Such N-acyl-1-amino alkane-1,1-diphosphonic acids are prepared, for instance, by acylating the corresponding 1-amino alkane-1,1-diphosphonic acids or by hydrolyzing the corresponding (1,1-diphosphono alkane) acylamidines.
N-酰基-1-
氨基烷基-1,1-
二膦酸或其碱
金属盐是高效的防垢和沉积物形成预防、
金属离子络合、螯合和
防腐剂,可在洗涤和清洁液和洗涤剂制备中大有裨益。这样的N-酰基-1-
氨基烷基-1,1-
二膦酸例如可以通过酰化相应的1-
氨基烷基-1,1-
二膦酸或通过
水解相应的(1,1-
二膦酸烷基)酰胺制备。