Corrosion inhibition of water systems with phosphonic acids

Details Corrosion inhibition of water systems with phosphonic acids Corrosion inhibition of water systems with phosphonic acids

1976-01-28

1978-02-28

Marantz, Sidney

Compositions: coating or plastic

Coating or plastic compositions

Alkali metal silicate containing

106 14, 252389A, 2605025, C23F 1116

Patent

active

040765016

ABSTRACT:
Process for inhibiting corrosion by corrosive water systems on metals which comprises adding to the water systems a phosphonic acid having the general formula: ##STR1## wherein R.sup.1 is a straight chain alkyl group having 1-5 carbon atoms, an alkenyl group having 3-5 carbon atoms in which the double bond is not adjacent to the nitrogen atom, a tolyl group, a benzyl group or a cyclohexyl group.

REFERENCES:
patent: 3346488 (1967-10-01), Lyons
patent: 3483133 (1969-12-01), Hatch
patent: 3668138 (1972-06-01), Hoover
patent: 3718603 (1973-02-01), Mitchell
patent: 3803047 (1974-04-01), Hwa
patent: 3809694 (1974-05-01), Redmore
patent: 3837803 (1974-09-01), Carter
patent: 3901651 (1975-08-01), Benner
patent: 3974090 (1976-08-01), Mitchel
K. Moedritzer et al., J. Org. Chem. 31(5), 1603-1607 (1966).

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