| Physical state | Soapy homogenous liquid at 24±2°C, free from visible impurities, and miscible with water |
|---|---|
Density at 24±2°C | 1.00 - 1.10 g/mL |
Surface tension | ≤ 35.0 dynes/cm |
pH of 1% (v/v) | 7.5 - 10.5 |
Emulsion stability test | No immediate separation of HSD oil |
Potassium content | ≤ 0.30 |
Foaming tendency test | Increase in volume not more than 5% |
