Solvent Propylene Glycol can exist in the air as a vapor.
- Molecular Weight: 76.10
- Content >99.8% by weight, 0.2% by weight is water
- Boiling point 186-189oC (367-372oF)
- Propylene Glycol freezes at -57oC
- Viscosity 250C: 48.6 centipoise
- Propylene Glycol solvent is prepared after reacting propylene oxide with water.