Keras - Cs2CO3 is perhaps the most hygroscopic carbonate. I got it cheap but slightly wet. It dried in a desiccator over silica gel nit earlier than
in 2 months. I got it in original chemical bottle. After drying I put the bottle into 2 layers of sealed plastic bags. I did not want to heat it as it
would certainly completely dissolve in that traces of moisture. Solubility in water is 2605 g/L (15 °C). |