Solid State Phase Equilibria and Solid Solution of the Si-Y-Zr Ternary System at 1173 K

Investigation of Solid–Liquid Phase Equilibria of Mg2+, NH4+//Cl–, SO42–H2O at T = 303.15 K and P = 88.35 kPa

“…If the difference between the experimental results and the literature value does not exceed 0.5%, the solution has reached equilibrium. 10 In this experiment, the shaking time and resting time were 6 and 12 h, respectively.…”

“…The whole experiment was carried out at the experimental temperature T = 303.15 ± 0.05 K and P = 88.35 kPa. The analysis method of each ion in the supernatant is as follows: 11,12 Mg 2+ content was determined by the EDTA method with an uncertainty of 0.005, 13 Cl − content was determined using T860 automatic potentiometric titration apparatus (Hanon Instruments) with an uncertainty of 0.005, 14 NH 4 + content was determined using an automatic Kjeldahl nitrogen determination analyzer (Shanghai Peo Analytical Instrument Co., Ltd.) with an uncertainty of 0.02, 10 and SO 4 2− content was measured by the barium sulfate precipitation method with an uncertainty of 0.05. 15 At the same time, the density and viscosity (ρ, η) of the equilibrium supernatant obtained after standing were measured.…”