P17.6
Solubility Test — Dissolution Rate and Visual Clarity Assessment
Procedure 6 of 40 · Chapter 17 · §17.2.1
1 table 0 notes
Table 1
| Material Type | Distilled Water (25°C) | Distilled Water (40°C) | Hard Water 300 ppm (25°C) | Hard Water 300 ppm (40°C) |
|---|---|---|---|---|
| LAS (neutralized) | Clear, <30 s | Clear, <15 s | Slight haze, <60 s | Clear, <30 s |
| SLES (70%) | Clear, <60 s | Clear, <30 s | Clear, <60 s | Clear, <30 s |
| AEO-9 (nonionic) | Clear to haze | Clear, <30 s | Cloud point possible | Clear, <30 s |
| NP-10 (nonionic) | Hazy | Clear | May precipitate | Hazy to clear |
| STPP | Clear, <60 s | Clear, <30 s | Clear, <60 s | Clear, <30 s |
| Zeolite 4A | Turbid suspension | Turbid suspension | Turbid suspension | Turbid suspension |
| Sodium carbonate | Clear, <30 s | Clear, <15 s | Cloudy (CaCO₃ ppt) | Cloudy (CaCO₃ ppt) |
| CMC | Clear viscous, <5 min | Clear viscous, <3 min | Clear viscous, <5 min | Clear viscous, <3 min |