Propylene Glycol
Propylene Glycol is a high-purity, versatile, and water-soluble solvent widely used in industrial applications such as coatings, cleaners, chemical formulations, and heat transfer fluids. It offers excellent solvency, low volatility, and high thermal stability.
Technical Data Sheet (TDS)
| Properties | Typical Values | Units | Test Methods |
|---|---|---|---|
| Chemical Name | 1,2-Propanediol | - | - |
| Formula | CH3-CH(OH)-CH2OH; C3H8O2 | - | - |
| Molecular Weight | 76.10 | g/mol | - |
| CAS Number | 57-55-6 | - | - |
| EINECS Number | 200-338-0 | - | - |
| Purity Assay |
>99.5 |
Wt. % |
- |
| Water - |
<0.2 |
Wt. % |
- |
| Boiling Point 101.3 KPa (1 atm) |
187°C (369°F) |
- |
- |
| Distillation Range 101.3 KPa (1 atm) |
186 - 189°C (367 - 372°F) |
- |
- |
| Vapor Pressure 20°C (68°F) |
0.011 KPa (0.08 mm Hg) |
- |
- |
| Vapor Pressure 25°C (77°F) |
0.017 KPa (0.13 mm Hg) |
- |
- |
| Freezing Point | Super cools | - | - |
| Pour Point | < -57°C (-71°F) | - | - |
| Specific Gravity 20°C (68°F) 25°C (77°F) 60°C (140°F) |
1.038 1.033 1.007 |
- - - |
- - - |
| Refractive Index 20°C (68°F) |
1.4310 – 1.4330 |
- |
- |
| Viscosity 20°C (68°F) 60°C (140°F) |
48.6 CP (mPa.s) 8.4 CP (mPa.s) |
- - |
- - |
| Specific Heat 25°C (77°F) |
2.52 J/g°K |
- |
- |
| Flash Point Pensky-Martens Close Cup |
104°C (220°F) |
||
| Auto-ignition Temperature | 371°C (700°F) | °C | - |
| Thermal conductivity 25°C (77°F) |
0.2061 W/m°K |
- |
- |
| Electrical Conductivity 25°C (77°F) |
1 µS/m |
- |
- |
| Heat of formation | -422 KJ/mol (-101 Kcal/g.mol) | KJ/mol | - |
| Heat of Vaporization 25°C (77°F) |
67.0 KJ/mol |
- |
- |
