Tag Archive | "citric acid passivation"

Clouding Out in Citric Acid Passivation

Q. We are performing Citrajet┬« passivation using the procedure found in your cell phone app. When finished, there are circles of “oil” floating on the Citrajet┬« solution, even though our parts had no oil on them. Is this normal? A: What you are seeing is not oil, but low-foaming surfactant coming out of solution…..

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