Product Details
This product is a colorless liquid with a low melting point of –70 °C. Its boiling point varies between 90–92 °C at 1.6 kPa and 74–75 °C at 667 Pa, depending on the ambient pressure. The liquid has a relative density of 1.1098 at 20/4 °C and a refractive index of 1.4, indicating its optical properties. Its open-cup flash point is 104 °C, meaning it is relatively safe in terms of flammability under normal conditions. With a viscosity of 5.34 mPa·s at 25 °C, it is fluid and flows easily, making it suitable for various applications where fluidity is important.
The product is miscible with water and also soluble in a wide range of common organic solvents, giving it significant versatility in industrial formulations and processes. The presence of 400 ppm of the inhibitor hydroquinone monomethyl ether helps prevent polymerization, which might otherwise occur under certain conditions, thereby ensuring stability during storage and handling. This makes it highly reliable for use in various chemical, pharmaceutical, and manufacturing processes where polymerization control is required.

Chemical Properties
| Melting point | -60 °C |
| Boiling point | 90-92 °C12 mm Hg(lit.) |
| density | 1.106 g/mL at 20 °C |
| vapor density | >1 (vs air) |
| vapor pressure | <0.1 mm Hg ( 20 °C) |
| refractive index | n20/D 1.45(lit.) |
| Fp | 209 °F |
| storage temp. | 2-8°C |
| form | Oily Liquid |
| pka | 13.85±0.10(Predicted) |
| color | Yellow to brown |
| Water Solubility | soluble |
| FreezingPoint | -35 |
| Sensitive | Light Sensitive |
| BRN | 969853 |
| Exposure limits | ACGIH: TWA 5 mg/m3 NIOSH: TWA 5 mg/m3 |
| InChIKey | OMIGHNLMNHATMP-UHFFFAOYSA-N |
| LogP | -0.17 at 25℃ |
| CAS DataBase Reference | 818-61-1(CAS DataBase Reference) |
| NIST Chemistry Reference | 2-Propenoic acid, 2-hydroxyethyl ester(818-61-1) |
| EPA Substance Registry System | 2-Hydroxyethyl acrylate (818-61-1) |
Safety Information
| Hazard Codes | T,N |
| Risk Statements | 24-34-43-50-20/22-22 |
| Safety Statements | 26-36/39-45-61-36/37/39 |
| RIDADR | UN 2927 6.1/PG 2 |
| WGK Germany | 3 |
| RTECS | AT1750000 |
| F | 8 |
| TSCA | Yes |
| HazardClass | 8 |
| PackingGroup | II |
| HS Code | 29161290 |
| Hazardous Substances Data | 818-61-1(Hazardous Substances Data) |








