Tripropylene glycol diacrylate

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Description

Additional Information

Category
Acrylate series
Describe
Tripropylene glycol diacrylate (TPGDA) is a common bifunctional acrylate reactive monomer. It has low viscosity, high flexibility and excellent cross-linking ability, and is widely used in UV/EB curing coatings, inks, adhesives, electronic packaging, 3D printing resins and other systems.
Cas No.
42978-66-5
Purity
mixture
Synonym(s)
TPGDA

Physical and chemical properties

1. Chemical Identity
- Chemical Name: Tripropylene glycol diacrylate
- IUPAC Name: A mixture including [2-(2-Acryloyloxy-1-methylethoxy)-1-methylethyl] acrylate
- Synonyms: TPGDA
- CAS Number: 42978-66-5
- EC Number: 256-032-2
- Molecular Formula: C15H24O6
- Molecular Weight: 300.35 g/mol
2. Physical Properties
- Appearance: Clear, colorless liquid.
- Odor: Mild, characteristic, acrylic/ester-like.
- Melting Point: <-20 °C (<-4 °F)
- Boiling Point: >250 °C (>482 °F) at 1013 hPa
- Density: 1.03 - 1.04 g/cm³ at 20 °C
- Solubility:
- In Water: 2 g/L at 20 °C (Slightly soluble)
- In Organic Solvents: Soluble in many common organic solvents.
- Vapor Pressure: <0.01 hPa at 20 °C
- Viscosity: 10 - 20 mPa·s at 25 °C
3. Chemical Properties and Stability
- Stability: Stable under recommended storage conditions. Typically supplied with a polymerization inhibitor (e.g., MEHQ).
- Incompatibilities: Incompatible with strong oxidizing agents, strong bases, strong acids, reducing agents, peroxides, and free-radical initiators.
- Hazardous Polymerization: May occur if not properly inhibited or if exposed to high temperatures, direct sunlight, UV radiation, or contaminants. Polymerization is a highly exothermic reaction.
- Hazardous Decomposition Products: Combustion may produce toxic fumes of carbon monoxide (CO) and carbon dioxide (CO2).
4. Other Key Data
- Flash Point: >125 °C (>257 °F) - Closed cup
- Refractive Index (n20/D): ~1.450

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