熱天秤法による液体Na2O-P2O5-SiO2系中のCO2の溶解度の測定
1984 年 48 巻 10 号 p. 983-989
詳細
1984 年 48 巻 10 号 p. 983-989
The solubility of carbon dioxide in Na2O-P2O5-SiO2 melt has been determined by using a themobalance in the range from 0.5 to 0.9 mole fraction of sodium oxide at 1373 K to 1473 K under various partial pressure of CO2 in O2-CO2 mixture. The experimental samples have been prepared from sodium carbonate, silica, and sodium metaphosphate. The solubility of carbon dioxide was calculated from the weight change of the melt. The measured solubility of carbon dioxide in Na2O-SiO2-P2O5 melt can be expressed by the experimental equations as follows.
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oindentwhere A, B, C and D are constants for various mole ratios of Na2O/SiO2 and T is the absolute temperature. The solubility of CO2 gas increases with decrease of temperature, with increase of partial pressure of CO2, and with decrease of the contents of SiO2 and P2O5.
