Hydroxypropylene-amino-phosphonic-sulfonic acids

Details Hydroxypropylene-amino-phosphonic-sulfonic acids Hydroxypropylene-amino-phosphonic-sulfonic acids

1978-12-04

1980-02-05

Evans, Joseph E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

210 58, 2603477, 26050112, 544243, 548352, C07F 938, C07D30704, C07D23322, C07D23900

Patent

active

041872452

ABSTRACT:
This invention relates to compounds characterized by the presence of N-methyl, or substituted methyl, phosphonic acid and N-hydroxy-propylenesulfonic acid groups. These compounds contain at least one or more of each group and are bonded to the same or different amino groups. They are derived by reacting an amine with both (1) an epihalohydrin-bisulfite addition product and (2) with a carbonyl compound, such as formaldehyde, and phosphorous acid or its equivalent.
They have a wide variety of uses, for example as scale and corrosion inhibitors, iron oxide removers, chelating agents, etc.

REFERENCES:
patent: 2673214 (1954-03-01), Bersworth et al.
patent: 2961311 (1960-11-01), Bersworth et al.
patent: 3288846 (1966-11-01), Irani et al.
patent: 3298956 (1967-01-01), Irani et al.
patent: 3703545 (1972-11-01), McCrary

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