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Effects of JK‐1′s H2S release on solution pH. (A) Proposed acid (H+)‐induced H2S release mechanism from JK‐1 18. (B) In a test tube, 11.8 ml of pH 3.0 aqueous solution was added, followed by the addition of a requisite volume of JK‐1 stock solution to prepare the indicated JK‐1 solutions. The final volume of the reaction solution was adjusted to 12 ml with pH 3 aqueous solution. After mixing and then standing for 60 min. at room temperature, the pH value of each solution was tested.
