Table V.
Average Particle Size, Span, and Percent Fraction Less than 5 μm of Microparticles Prepared Using Different Operating Conditions by Keeping Respectively the Other Constant as Reported in Table I
| Operating condition | D 50% (µm) | Span | Fraction <5 μm (%) | |
|---|---|---|---|---|
| Average (SD) | Average (SD) | Average (SD) | ||
| Pressure (bar) | 138 | 3.91 (0.39) | 2.61 (0.46) | 59.00 (3.79) |
| 172 | 3.40 (0.04) | 3.29 (0.25) | 65.20 (2.69) | |
| 207 | 3.48 (0.04) | 2.09 (0.10) | 65.83 (3.22) | |
| Temperature (°C) | 33 | 3.27 (0.02) | 2.84 (0.07) | 66.75 (2.99) |
| 40 | 3.40 (0.04) | 3.29 (0.25) | 65.20 (2.69) | |
| 50 | 5.25 (0.17) | 4.19 (0.38) | 47.96 (1.36) | |
| Concentration (% w/v) | 1 | 3.28 (0.04) | 2.88 (0.18) | 68.00 (2.87) |
| 2 | 3.40 (0.04) | 3.29 (0.25) | 65.20 (2.69) | |
| 3 | 4.50 (0.23) | 3.31 (0.48) | 51.57 (2.39) | |
| Carbon dioxide molar fraction | 0.79 | 3.75 (0.04) | 3.07 (0.13) | 60.46 (2.14) |
| 0.82 | 3.40 (0.04) | 3.29 (0.25) | 65.20 (2.69) | |
| 0.85 | 3.49 (0.14) | 2.64 (0.17) | 64.11 (2.44) |