Table 1.
Miscibility of NRG in oil and surfactants with co-surfactants.
| S. No. | Co-surfactant | Miscibility with oils | Miscibility with Surfactants |
|---|---|---|---|
| 1 | Transcutol HP | Clear | Clear |
|
| |||
| 2 | Propylene Glycol | Turbid | Turbid |
|
| |||
| 3 | Captex 200 | Clear | Turbid |
Miscibility studies revealed that “Transcutol-HP was selected as the co-surfactant”