Chelation

Details Chelation Chelation

1971-06-03

1984-04-03

Wyse, Thomas G.

Liquid purification or separation

Processes

Preventing, decreasing, or delaying precipitation,...

252389A, 2605024R, 2605024P, 422 15, C02F 514

Patent

active

044406460

ABSTRACT:
Hydroxymethane diphosphonic acid and alkali metal or ammonium salt of such acid are prepared. They are useful in detergent compositions and in sequestering and chelating polyvalent metals.

REFERENCES:
patent: 2848475 (1958-08-01), Schmidt
patent: 3122417 (1964-02-01), Blaser et al.
patent: 3149151 (1964-09-01), Schiefer et al.
patent: 3422137 (1969-01-01), Quimby
patent: 3532639 (1970-10-01), Hatch
patent: 3617576 (1971-11-01), Kerst
patent: 3714066 (1973-01-01), King et al.
patent: 3733270 (1973-05-01), Kerst

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