Analyze the reason for the change of the salt spray test chamber solution?

Atmospheric pressure also affects the pH value of the salt solution. When spraying with compressed air, due to the increase in air pressure, the amount of dissolved carbon dioxide and other acidic substances in the air increases, and the pH value of the salt solution decreases. The salt spray test chamber will continually spit out fine and fine particle salt spray while working, which will increase the contact area between the salt solution and the atmosphere, which will increase the amount of overflow of the soluble substance, and thus will increase the pH value of the salt solution.
In the process of using the salt association test chamber, users often have changes in the concentration of the salt solution. To help the majority of users solve this problem, our company made the following analysis:
The most important factor that affects the change of the pH value of the salt solution is the different soluble substances in the atmosphere. The different soluble substances mixed in the brine are slightly acidic and some alkaline, so that the pH value of the salt solution changes. The dissolution of soluble substances will lower the pH of the salt solution, and the overflow of substances will increase the pH of the salt solution. Under the same environmental conditions, there will be more dissolved substances than spilled substances, so the pH value of the salt solution will generally decrease slightly during the test.
Attachment: The product use salt spray test box is suitable for the salt spray corrosion test of parts, electronic components, metal materials and industrial products. It is the "three protection" (humid heat, salt spray, mold) test equipment for artificial climate environment. One. It is an indispensable test equipment for the research of machinery, national defense industry, light industry electronics, instrumentation and other industries for various environmental adaptability and reliability.

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