Figure 6.

The pH measurements of (a) 0.2 M Na₂HPO₄ aqueous solutions containing variable amounts of sodium phytate (wt.% related to the powder content of the corresponding cement pastes) and (b) cements composed of α–TCP and CDHA (weight ratio 9:1) with 0 and 0.25 wt.% sodium phytate; a 0.2 M Na₂HPO₄ aqueous solution was used as the mixing liquid with an L/P of 1.2 ml/g_Powder. The measurements were performed at T = 37 °C; three independent measurements were run for each sample, and the error bars represent the standard deviation.