Since the addition of the water causes the temperature of the mixture to rise rapidly, it is done in an ice bath so that the temperature does not climb above 50 °C. As more water is added, the mixture becomes less reactive until the final ~700 ml can be poured in with no observable rise in temperature. After adding all of the 920 ml of DI water, the mixture is stirred for 2 hours at which point an additional 2.8 L of DI water is added
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