an increasing trendp < 0.001
Al, the predominant acidic cation, showed an increasing trend of solubility at S1 till the end of incubation ( p < 0.001).
Al, the predominant acidic cation, showed an increasing trend of solubility at S1 till the end of incubation ( p < 0.001).
ExA showed a highly significant positive correlation ( r = 0.91, p < 0.001) with Ex‐Al inferring the dominant role of aluminum in making ExA (Figure 2c ).