Description
Solvent with a high KB value, high water miscibility, and quick drying time, which makes it an ideal cleaning, degreasing, and aerosol formulation ingredient.
Key Features
- High solvent strength
- Fast evaporation rate
- Low toxicity profile
Applications
- Aerosol cosolvent
- SNAP approved Polyurethane Blowing Agent
- Polyoxymethane resin polymer component
- Paint and graffiti remover
- Cleaning solvent
Description and Physical Properties
| Formula | C3H8O2 |
| Molecular Weight (g/mol) | 76.08 |
| CAS Number | [109-87-5] |
| Other Names | Methylal |
| Appearance | Clear, colorless liquid |
| Density, g/ml | 0.861 |
| Boiling Point, °C | 42.3 |
| Flash Point – Closed Cup, °C | -18 |
| Solubility in Water, % | 32.3 |
| Surface Tension @ 25°C, N/m | 21.2 |
| Vapor Pressure @ 20°C, psi | 5.88 |
| Kinematic Viscosity @ 25°C | 0.371 |
| MIR Value | 0.94 |
| KB Value | 164 |
| GWP (100 year) | < 3 |
| ODP | 0 |
SNAP Substitute Acceptable Listing Status1 | DMM | Saturated Light Hydrocarbons (C3-C6) | Dichloromethane | Class I (CFCs) and II ODS (HCFC-141b, 142b, 22 blends) |
|---|---|---|---|---|
| Rigid PU: Appliance | Yes | Yes | No | No |
| Rigid PU: Spray | Yes | No | No | No |
| Rigid PU: Commercial Refrigeration | Yes | Yes | No | No |
| Rigid PU: Marine Flotation Foam | Yes | Yes | No | No |
| Rigid PU: Sandwich Panels | Yes | Yes | No | No |
| Flexible PU | Yes | Yes | No | No |
| Integral Skin PU | Yes | Yes | Yes | No |
| Rigid PU: Slabstock & Other | Yes | Yes | No | No |
| Rigid PU & Polyisocyanurate Laminated Boardstock | Yes | Yes | No | No |
| Polystyrene: Extruded Boardstock & Billet | No | Yes | No | No |
| Polystyrene: Extruded Sheet | No | Yes | No | No |
| Polyolefin | No | Yes | Yes | No |
| Phenolic Insulation Board & Bunstock | No | Yes | No | No |
*SNAP status for HFC-134a, HFC-245fa, and HFC-365mfc and other high GWP HFCs is listed as “Unacceptable” for polyurethane, polystyrene, polyolefin, and phenolic foams.
- Substitutes in Foam Blowing Agents. Available at epa.gov/snap/substitutes-foam-blowing-agents (Accessed 10 February 2021)