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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