Corrosion-inhibited polyphosphate compositions

Details Corrosion-inhibited polyphosphate compositions Corrosion-inhibited polyphosphate compositions

1974-08-15

1976-06-01

Padgett, Benjamin R.

Compositions

Fire-extinguishing

21 25R, 21 25A, 21 27R, 21 27A, 106 14, 252 81, 252387, 252385, 252389R, 252389A, 428920, 428921, A62D 100, C23F 1104, C23F 1108, C23F 1110

Patent

active

039607356

ABSTRACT:
The tendency of polyphosphate liquids to corrode aluminum is inhibited by incorporating into the liquid a minor effective amount of an iron cyanide blue, either ferric ferrocyanide or ferrous ferricyanide.

REFERENCES:
patent: 2515529 (1950-07-01), Ryznar et al.
patent: 2901437 (1959-08-01), Bailey et al.
patent: 3151087 (1964-09-01), Ryznar et al.
patent: 3245904 (1966-04-01), Young
patent: 3257316 (1966-06-01), Langguth et al.
patent: 3275562 (1966-09-01), Smith
patent: 3309324 (1967-03-01), Langguth et al.
patent: 3542686 (1970-11-01), Miller
patent: 3730890 (1973-05-01), Nelson
patent: 3809653 (1974-05-01), Sansing et al.

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