Table 1 Chemical and physical properties of the silicone oils evaluated
From: Feasibility of using experimental high viscosity silicone oils: a pilot study
Properties | Currently used | Tested oils | ||
|---|---|---|---|---|
Viscosity (cS) | 1000 | 5500 | 12,500 | 30,000 |
Color | Colorless | N/A | ||
Flash point, open cup (°C) | > 326 | > 321 | > 326 | > 326 |
Flash point, closed cup (°C) | > 100 | > 100 | > 100 | > 100 |
Hydrophobic | Yes | Yes | Yes | Yes |
Pour point (°C) | − 50 | − 50 | − 50 | − 43 |
Refractive index | 1.403 | 1.403 | 1.403 | 1.403 |
Service temperature, high (°C) | 200 | 200 | 200 | 200 |
Service temperature, low (°C) | −40 | − 40 | − 40 | − 40 |
Specific gravity @ 25°C | 0.971 | 0.975 | 0.975 | 0.971 |
Surface tension (mN/M) | 21.2 | 21.4 | 21.5 | 21.5 |
Thermal conductivity (W/mK) | 0.159 | 0.159 | 0.159 | N/A |
Volatile content | N/A | N/A | ||