Can hydrofluoric acid clean oil and stains on stainless steel pipes?
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As shown in the picture, can this effect be achieved if only hydrofluoric acid is used? If not, what chemical raw materials should be added? Can you please tell me the process?
How should I clean it and what chemical raw materials should I use?
Although HF acid does not corrode stainless steel pipes, it is still recommended not to use it because it is toxic, highly corrosive, and highly permeable. There are many cleaning solutions online, you can refer to them below
To clean oil stains, organic solvents with good oil solubility should be used, such as chloroform, tetrachlorethylene, etc. Hydrofluoric acid cannot remove oil stains, but it can clean oxides on the surface of stainless steel. Those who say that hydrofluoric acid does not corrode stainless steel do not understand the characteristics of hydrofluoric acid. Hydrofluoric acid is the main acidic component used to clean stainless steel surfaces and etch stainless steel.
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You can use sulfuric acid + nitric acid + phosphoric acid, three-acid chemical polishing treatment
Cannot be used, 1. Stainless steel cannot be cleaned, pressure tested, etc. with liquids containing fluorine, chlorine, etc. 2. Similar and compatible, inorganic acids cannot clean oil.
Cannot be used, 1. Stainless steel cannot be cleaned, pressure tested, etc. with liquids containing fluorine, chlorine, etc. 2. Similar and compatible, inorganic acids cannot clean oil.