N-hydroxy alkane amino alkane diphosphonic acids, process of pro

Details N-hydroxy alkane amino alkane diphosphonic acids, process of pro N-hydroxy alkane amino alkane diphosphonic acids, process of pro

1976-04-09

1977-06-14

Evans, Joseph E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

21 27A, 71 86, 162158, 210 58, 252 857, 252 88, 252180, 252186, 252DIG17, 260429J, 260DIG4, C07F 938

Patent

active

040296962

ABSTRACT:
Valuable amino alkane diphosphonic acids in which one or both hydrogen atoms of the amino group are substituted by hydroxy alkane groups, and their alkali metal salts and a process of making them are described. Said compounds are highly water-soluble, are stable against hydrolysis even at temperatures exceeding 100.degree. C., and have a high sequestering power so that they can be used advantageously, for instance, in processing aqueous media of considerable hardness, in baths for treating textiles, in the paper manufacture, in tanning, as liquid fertilizers, and for other purposes.

REFERENCES:
patent: 2917528 (1959-12-01), Ramsey et al.
patent: 2964549 (1960-12-01), Ramsey et al.
patent: 3904493 (1975-09-01), Losi et al.
patent: 3907652 (1975-09-01), Wagenknecht et al.

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