How to use the technical indicators of corrosion inhibitor SGR-0405 is a liquid product, which can be used to remove dirt on various metal surfaces. Pay attention to the following points when using:
(1) preparation of cleaning solution: the concentration of corrosion inhibitor SGR-0405 is generally 0.3%-0.5%. Add the measured SGR-0405 into the measured water and stir evenly; Slowly add the measured acid into the prepared liquid, and stir to make the solution mix evenly.
(3) Precautions for pickling: The amount of acid used in the cleaning process must be determined according to the amount of dirt on the surface of the equipment, and a small amount can be added later; Concentration of inorganic acids (hydrochloric acid, nitric acid, sulfuric acid, phosphoric acid, hydrofluoric acid, etc.). ) is generally 3%- 10%, and can't exceed 20%, and try to use it at room temperature. If the temperature exceeds 55℃, the corrosion inhibitor is easy to fail. Concentration of organic acids (sulfamic acid, citric acid, oxalic acid, acetic acid, EDTA, etc.). ) generally 3%-20%, it should be used at room temperature or heated to 60℃ -90℃, and the temperature or concentration should not be too high or the corrosion inhibitor may fail; The optimum concentration and conditions for initial use can be determined according to experiments.