Corrosion inhibitor

Details Corrosion inhibitor Corrosion inhibitor

1975-08-15

1978-08-22

Padgett, Benjamin R.

Compositions

Water-softening or purifying or scale-inhibiting agents

21 25R, 21 27R, 106 1412, 210 59, 252389A, 252396, C23F 1112, C23F 1116

Patent

active

041087909

ABSTRACT:
Oxidative corrosion in cooling water systems containing chlorine to prevent bacterial growth is effectively inhibited by the addition of small amounts of a water-soluble polyphosphate and a water-soluble gluconate. Specific examples of salts are sodium hexametaphosphate and sodium gluconate. The combination of a polyphosphate and a gluconate results in a synergistic improvement of corrosion inhibition.

REFERENCES:
patent: 3256203 (1966-06-01), Robertson et al.
patent: 3483033 (1969-12-01), Casey

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