C - Chemistry – Metallurgy – 23 – G
Patent
C - Chemistry, Metallurgy
23
G
149/22
C23G 1/18 (2006.01) C02F 5/08 (2006.01) C23G 1/14 (2006.01)
Patent
CA 1219199
- 30 - COOLING SYSTEM CLEANING COMPOSITION 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.
482372
Hopley William G.
Union Carbide Corporation
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