Cooling system cleaning composition
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United States of America Patent
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Sep 10, 1985
Grant Date -
N/A
app pub date -
Jun 15, 1984
filing date -
Jun 15, 1984
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A cooling system cleaning composition comprising an aqueous solution of a tetra-alkali metal salt of ethylenediaminetetraacetic acid, a soluble salt of citric acid, and a soluble salt of nitric acid. The preferred composition also contains an aluminum corrosion inhibitor and has a pH between about 10 and about 14.
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