Preparation of Ph. Eur. Standard Color Solutions (Gravimetric Preparation)
| Primary color solution | Density (mg/mL) | R | B | BY | Y | GY |
|---|---|---|---|---|---|---|
| 1% HCl (g) | 1.0043 | 35.1505 | 8.0344 | 31.1333 | 35.1505 | 0.0000 |
| Blue (g) | 1.0413 | 0.0000 | 12.4956 | 2.0826 | 0.0000 | 1.0413 |
| Red (g) | 1.0330 | 10.3300 | 15.4950 | 5.1650 | 3.0990 | 1.0330 |
| Yellow (g) | 1.0263 | 5.1315 | 15.3945 | 12.3156 | 12.3156 | 49.2624 |
| Density (mg/mL) | 1.0121 | 1.0281 | 1.0138 | 1.0112 | 1.0265 |