The issue of hydrochloric acid concentration
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The current concentration of the hydrochloric acid mother liquor is 22%, and it is stored in a hydrochloric acid tank. If it is taken to a manufacturer that has hydrogen chloride, hydrogen chloride can be directly introduced into it (since it contains other organic solvents, circulation cannot be used for absorbing hydrogen chloride). How long will it take to increase the concentration to 30%?
That can’t be true! ! Why wasn’t 30 mentioned at the beginning?