Hydroxyl-functional acrylate (mixed isomers) for radiation-curing systems
2-Hydroxypropyl Acrylate
2-Hydroxypropyl Acrylate (2-HPA, CAS 25584-83-2) is a hydroxyl-functional acrylate monomer supplied as a mixture of isomers. It is used as a reactive diluent and cross-linker in radiation-curable coatings, inks and adhesives, improving flexibility and adhesion.
DECHEM supplies 2-HPA in the following commercial grades: 93 / 95 / 97. The grade number refers to the minimum monoester content; the total ester purity is specified separately on the Technical Data Sheet and on every Certificate of Analysis.
A REACH registration for this product has not been supplied at the time of publication. We will confirm registration status on request.
Typical Specifications
DECHEM supplies the following commercial grades. "Monoester" is the grade-defining monoester content; "Purity" is the total ester content — they are separate metrics and are both reported on every Certificate of Analysis. The grade number identifies the document set; the specification printed in the table is the specification of the Technical Data Sheet for that grade.
| Parameter | 93 | 95 | 97 |
|---|---|---|---|
| Grade | 93 (Qualified Grade) | 95 (Qualified Grade) | 97 (Premium Grade) |
| Monoester (w%) | ≥ 93% | ≥ 95% | ≥ 97% |
| Purity (w%) | ≥ 97% | ≥ 98% | ≥ 99% |
| Water (w%) | ≤ 0.30% | ≤ 0.2% | ≤ 0.10% |
| Acidity (w%) | ≤ 0.30% | ≤ 0.1% | ≤ 0.10% |
| Colour (Hazen) | ≤ 30 | ≤ 20 | ≤ 10 |
| Inhibitor (MEHQ) | 300 ± 50 ppm | 250 ± 50 ppm | 250 ± 50 ppm |
Note: on the 2-HEA Technical Data Sheets the file names and the printed grade numbers do not always coincide. The values above are the values printed in each document. We will confirm the grade designation for your order together with the quotation and the Certificate of Analysis.
Storage and Handling
Store in original containers between 15 °C and 25 °C, tightly closed, protected from heat and direct sunlight. Maintain oxygen in the vapour space. Do not store under nitrogen or inert gas — the MEHQ inhibitor requires dissolved oxygen to remain effective. Keep containers tightly closed and protected from heat and sunlight.
Values are typical and are confirmed by the Certificate of Analysis issued for each lot. The official TDS and the lot COA always govern the contract.
Technical Parameters
| Parameter | Value |
|---|---|
| CAS No. | 25584-83-2 |
| EC No. | 247-118-0 |
| HS code | 29161290.90 |
| Molecular formula | C6H10O3 |
| Molecular weight | 130.14 |
| Density (g/cm³) | 1.054 |
| Boiling point | 77 °C (6.66 kPa) |
| Melting point | -30 °C |
| Flash point | 100 °C (open) / 89 °C (closed) |
| Viscosity (20 °C) | 8.1 mPa·s (20 °C) |
| Appearance | Colorless to light yellow transparent liquid, no mechanical impurities |
| Shelf life | 12 months from the manufacturing date in unopened original containers |
| Monoester (w%) (93) | ≥ 93% |
| Purity (w%) (93) | ≥ 97% |
| Water (w%) (93) | ≤ 0.30% |
| Acidity (w%) (93) | ≤ 0.30% |
| Colour (Hazen) (93) | ≤ 30 |
| Inhibitor (MEHQ) (93) | 300 ± 50 ppm |
| Monoester (w%) (95) | ≥ 95% |
| Purity (w%) (95) | ≥ 98% |
| Water (w%) (95) | ≤ 0.2% |
| Acidity (w%) (95) | ≤ 0.1% |
| Colour (Hazen) (95) | ≤ 20 |
| Inhibitor (MEHQ) (95) | 250 ± 50 ppm |
| Monoester (w%) (97) | ≥ 97% |
| Purity (w%) (97) | ≥ 99% |
| Water (w%) (97) | ≤ 0.10% |
| Acidity (w%) (97) | ≤ 0.10% |
| Colour (Hazen) (97) | ≤ 10 |
| Inhibitor (MEHQ) (97) | 250 ± 50 ppm |
Applications
- UV/EB curing coatings — reactive diluent for viscosity control
- UV inks and overprint varnishes — improves flexibility and adhesion
- Pressure-sensitive adhesives — hydroxyl functionality for cross-linking
- Polymer modification — hydroxyl-functional acrylic copolymers
- Textile and leather coatings — flexibility and durability
Packaging
| Package Type | Net Weight | Note |
|---|---|---|
| Polyethylene plastic drum | 200 kg net | Standard export drum |
| IBC tote | 1,000 kg net | For partial bulk orders |
| Teflon lined iron drum | 200 kg net | Available on request |
| ISO tank | 20–24 MT net | For full bulk shipments |