| Physical Properties |
| Appearance |
Clear, colorless to straw yellow liquid |
| Odor |
Aromatic |
| Color (ASTM D2129), APHA |
≤ 70 |
| Composition |
35 to 45% Benzyltoluene
55 to 65% Diphenylethane |
| Epoxide concentration, mg HCl/g |
1.9 |
| Ethyl vanillin content, ppm |
0 |
Kinematic Viscosity, mm²/s (cSt) (ASTM D445)
at 20°C (68°F)
at 40°C (104°F)
at 100°C (212°F) |
4.27
2.65
1.07 |
| Average Molecular Weight, g/mol |
182 |
| Moisture Content, parts per million, maximum |
300 |
| Density at 25°C (77°F) (ASTM D1298) |
980 kg/m³ |
| Specific Gravity at 20°C (ASTM D1298) |
0.99 |
| Coefficient of Thermal Expansion 20 – 100°C (ASTM D1903) |
5.3 x 10⁴ |
| Dielectric Constant at 20°C (68°F) |
2.5 |
| Dielectric Breakdown Voltage, kV (IEC 156) |
70 |
| Dissipation Factor, 50 Hz at 90°C (IEC 247) |
0.001 |
Gas solubility at 25°C (ASTM D2495)
O₂
N₂ |
1.9%
3.7% |
Permittivity
at 25°C (IEC 247)
at 100°C (ASTM D924) |
2.4
2.40 – 2.52 |
| Refractive Index |
1.566 – 1.5794 |
| Surface Tension at 80°C (ASTM D3825, dynes/cm) |
38.24 |
| Volume Resistivity at 90°C (IEC 247) |
1.0 x 10¹⁵ |
Vapor Pressure
at 20°C
at 100°C |
0.004 kPa 0.00058 psia
0.133 kPa 0.019 psia |
| Water Solubility at 20°C |
Immiscible |
| Water Content (ASTM D6304), ppm |
≤ 70 |
| Acid Number, mg∙KOH/g |
< 0.01 |