The invention belongs to the technical field of
metal surface cleaning and in particular discloses an air conditioner fin
cleaning agent and a preparation method thereof. The
cleaning agent is mainly prepared by mixing water and the following components by weight percentage: 10 to 15 percent of
nitric acid, 0.5 to 0.8 percent of
potassium chromate, 0.5 to 0.8 percent of
sodium ethoxylated
alkyl sulfate, and 0.1 to 0.5 percent of polyoxyethylene octylphenol
ether. The preparation method comprises the following steps: taking water in half of the amount, adding the
nitric acid into the water, and uniformly stirring the
nitric acid and the water to obtain an
aqueous solution a; taking the other half amount of water, sequentially adding the
potassium chromate, the odium ethoxylated
alkyl sulfate and the polyoxyethylene octylphenol
ether into the water, fully stirring the mixture till
solid particles dissolve completely, and obtaining an
aqueous solution b; and slowly adding the uniformed stirred
aqueous solution a into the aqueous solution b, fully stirring the aqueous solution a and the aqueous solution b till the
mixed solution is uniform, and obtaining a finished product. The
cleaning agent is excellent in cleaning and energy-saving effect and avoids
corrosion influences on equipment surface substantially.