For chemists and materials scientists, a thorough understanding of a chemical compound's properties is fundamental to its effective application. 2-Isocyanatoethyl Acrylate, identified by CAS number 13641-96-8, is a fascinating molecule whose dual functionality dictates its behavior and applications. This article delves into its key physical and chemical characteristics, providing essential insights for anyone looking to buy or utilize this versatile intermediate.

Physical Characteristics

  • Appearance: 2-Isocyanatoethyl Acrylate is typically described as a colorless to almost colorless clear liquid. This visual cue is important for initial quality assessment.
  • Molecular Formula: C6H7NO3
  • Molecular Weight: Approximately 141.13 g/mol. This figure is crucial for stoichiometric calculations in synthesis.
  • Melting Point: Reported around -25°C. This low melting point confirms its liquid state under standard laboratory conditions.
  • Boiling Point: Typically specified as 80-95°C at 15 Torr. The reduced pressure boiling point indicates its relative volatility and stability at elevated temperatures under vacuum.
  • Density: Approximately 1.05 g/mL. This property is important for volumetric measurements and formulation.
  • Refractive Index: Usually between 1.4470 and 1.4510. This optical property can be used as a quick purity check.
  • Flash Point: Around 97°C (lit.). This indicates its flammability characteristics, which are vital for safe handling and storage protocols.

Chemical Properties and Reactivity

The chemical behavior of 2-Isocyanatoethyl Acrylate is defined by its two primary functional groups:

  • Isocyanate Group (-N=C=O): This group is highly electrophilic and reacts readily with nucleophiles. Key reactions include:
    • Reaction with alcohols to form urethanes (polyurethanes when used as a monomer).
    • Reaction with amines to form ureas.
    • Reaction with water, which can lead to the formation of unstable carbamic acids and subsequent decarboxylation, potentially forming diamines or other byproducts. This highlights the need for anhydrous conditions in many applications.
  • Acrylate Ester Group (CH2=CH-COO-): This moiety contains a carbon-carbon double bond conjugated with a carbonyl group. It is known for its susceptibility to free-radical polymerization, forming polyacrylate chains. It can also participate in Michael additions and other reactions characteristic of alpha,beta-unsaturated carbonyl compounds.

Stability and Handling

Due to the reactivity of both functional groups, 2-Isocyanatoethyl Acrylate is often stabilized. The acrylate double bond can undergo spontaneous polymerization, especially when exposed to heat, light, or initiators. For this reason, inhibitors such as BHT (Butylated Hydroxytoluene) are commonly added. The isocyanate group's sensitivity to moisture necessitates storage in a dry environment, preferably under an inert atmosphere (e.g., nitrogen or argon). Refrigerator storage (2-8°C) is frequently recommended to maintain its quality. When you buy this chemical, always consult the supplier's recommendations for optimal storage and handling.

Understanding these properties allows chemists and procurement managers to make informed decisions about purchasing and utilizing 2-Isocyanatoethyl Acrylate. As a leading chemical supplier, we ensure our product meets these stringent quality and stability requirements, providing you with a reliable intermediate for your synthesis needs. For detailed specifications or to inquire about buying this product, please contact us.