Compositions – Preservative agents – Anti-corrosion
Patent
1992-03-02
1993-08-03
Stoll, Robert L.
Compositions
Preservative agents
Anti-corrosion
422 14, 422 18, 210697, 210696, C02F 168, C23F 1118
Patent
active
052326292
ABSTRACT:
An orthophosphate salt and sodium silicate, when used in a 3:1 ratio by weight, and in a concentration of 0.1 to 100 mg/L, are found to have a synergistic effect in controlling the corrosion of carbon steel in an aqueous system, e.g., a municipal water supply system. The synergistic combination is also useful in reducing lead solubility and leaching, and in stabilizing soluble iron and manganese and their reaction products.
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Calgon Corporation
Caruso Charles M.
Fee Valerie
Speer Raymond M.
Stoll Robert L.
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