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Acrylate or methacrylate intermediates |
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2-HEMA |
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Depend on quantity |
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Negotiable |
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To be advised |
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T/T or L/C |
2-HEMA
2-Hydroxyethyl Methacrylate
CAS No : 868-77-9
Application
Hydroxyl functional acrylic monomers can be used in variety of ways to produce resins that are useful in high performance coating applications. Using typical methods for the polymerization of hydroxyethyl Methacrylate(HEMA) can be used attach hydroxyl groups to an acrylic polymer backbone. The pendant hydroxyl groups can then act as sites for reaction with variety of cross-linking agents. HEMA allows faster curing cycles and/or reduce baking temperatures, compared with hydroxyalkyl methacrylates. Also HEMA can be formulated at higher solids in coating applications.
Sales Specifications
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Purity |
Min. 98.0% |
GC |
|
Water Content |
Max. 0.1% |
K. Fischer |
|
Color |
Max 30 |
Pt-Co |
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Acidity (as AA) |
Max 1.5% |
Acid-base titration |
|
Stabilization |
400±40 ppm MEHQ |
HPLC |
|
Diester |
Max 0.3% |
GC |
Physical data
|
Appearance |
Clear, Colorless liquid |
|
Odor |
Ester-like |
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Molecular weight |
130.1 g/mol |
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Density |
1.07 g/cm3(20℃) |
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Refractive index |
1.453 (20℃) |
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Boiling point |
+250℃ (1013mmHg) |
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Solidification point |
Below -60℃ |
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Viscosity |
5 cPs (30℃) |
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Flash point |
+101℃ (DIN51758) |
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Heat of polymerization |
50KJ/mol |
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Solubility (20℃) |
Miscible with water in any ratio |
Storage and Handling
In order to prevent polymerization, HEMA must always be stored under air, and never under inert gases. The presence of oxygen required for stabilizer to function effectively. It has to contain a stabilizer and the storage temperature must not exceed 35℃. Under these conditions, a storage stability of one year can be expected. In order to minimize the likehood of overstorage, the storage procedure should strictly follow the “first-in-first-out” principle. For extended storage period 4 weeks it is advisable to replenish the dissolved oxygen content
Packaging
Steel drums with include lining, 200kg net weight, or stainless steel tank.