Table 1. Selected Chemical Properties of PVC Microplastics.
| DEHP38% | DEHP33% | DOTP35% | DOTP24% | DINP39% | DINP23% | |
|---|---|---|---|---|---|---|
| Phthalate | ||||||
| content (%) | 37.79 | 33.05 | 35.13 | 23.69 | 38.58 | 23.17 |
| mol. weight (g mol–1) | 390.6a | 390.6a | 390.6a | 390.6a | 418.6a | 418.6a |
| log KO/W (at 20 °C) | 7.66b | 7.66b | 8.04b | 8.04b | 8.97b | 8.97b |
| log KHD/W (at 20 °C) | 7.69b | 7.69b | 8.24b | 8.24b | 9.03b | 9.03b |
| boiling point (°C) | 457.2b | 457.2b | 451.1b | 451.1b | 481.6b | 481.6b |
| water solubility (μg L–1 at 20 °C) | 3.6b | 3.6b | 1.6b | 1.6b | 0.6b | 0.6b |
| PVC microplastic | ||||||
| density (g cm–3) | 1.21c | 1.21c | 1.20c | 1.23c | 1.18c | 1.30c |
| glass trans. temp. (°C) | –33.2d | –35.2d | –30.2d | –28.3d | –35.2d | –8.2d |
| weight av. mol weight MW (g mol–1) | 182000e | 188000e | 186000e | 108000e | 184000e | 146000e |
| number av. mol weight MN (g mol–1) | 76200e | 76800e | 83700e | 4300e | 79200e | 69600e |