Sol solution | Sol color | Dried gel | ||
C (%) | H (%) | N (%) | ||
(a) | Milky yellow (gelation) | 18.4 | 4.9 | 21.5 |
(b) | Yellow transparent | 14.4 | 3.5 | 0.0 |
(c) | Milky white (gelation) | 18.0 | 4.8 | 17.0 |
(d) | Clear transparent | 13.5 | 3.4 | 0.0 |