Product Name:
2,2'-Azobis[2-(2-imidazolin-2-yl)propane] dihydrochloride

Common Name:
VA-044

CAS Number:
27776-21-2

Chemical Formula:
C9H16N4 · 2HCl

Molecular Weight:
254.2 g/mol

Key Product Features

1. Water-Solubility:
   VA-044 is highly water-soluble, making it ideal for water-based formulations and aqueous polymerization reactions.

2. Low Decomposition Temperature:
   With a half-life of 10 hours at 44°C in water, VA-044 is suitable for initiating polymerization reactions at relatively low temperatures, which helps preserve the stability of sensitive ingredients in formulations.

3. High Efficiency as a Radical Initiator:
   VA-044 produces free radicals efficiently, making it highly effective in initiating polymerization of various water-soluble vinyl monomers. This property is critical in manufacturing stable and consistent polymers.

4. Stable Performance in Aqueous Environments:
   VA-044 is particularly stable in water, offering reliable performance in aqueous environments, making it suitable for a wide range of applications, including cosmetics, coatings, and water treatment products.

Applications

VA-044’s properties make it a versatile choice for several industries:

• Paints and Coatings:
  Its low-temperature decomposition is advantageous in water-based coatings, allowing stable and uniform polymer formation.

• Water Treatment:
  It serves as an initiator for polymer-based water treatment agents that help improve water quality by removing contaminants.

• Adhesives and Sealants:
  VA-044’s effective radical formation supports the manufacture of high-performance adhesives, providing good adhesion properties.

Advantages

• Environmentally Friendly:
  Since it works effectively in water, VA-044 is a more eco-friendly option than many organic initiators, supporting sustainable practices in manufacturing.

• Safe and Controlled Polymerization:
  Due to its controlled decomposition at moderate temperatures, VA-044 enables safe and controlled polymerization, reducing risks associated with higher-temperature initiators.

• High Purity and Consistency:
  Its high purity ensures that it integrates seamlessly into formulations, delivering consistent performance.

Technical Specifications

• Appearance: White to slightly off-white powder
• Decomposition Temperature: Half-life of 10 hours at 44°C in water
• Storage Conditions: Keep in a tightly sealed container, stored in a cool, dry, well-ventilated area. Ideal storage temperature is below 30°C.
• Shelf Life: Approximately two years when stored under appropriate conditions

Handling and Safety Information

• Handling Precautions:
  Handle in a well-ventilated area and avoid contact with skin, eyes, and clothing. Use personal protective equipment (PPE) like gloves, goggles, and lab coats.

• Safety Data:

  • Hazard Classification: Not classified as hazardous according to GHS standards.
  • Fire Hazard: Non-flammable but should be kept away from strong oxidizers and open flames.
  • Toxicity: Low toxicity; however, prolonged exposure can cause mild irritation.

• First Aid Measures:

  • Inhalation: Move to fresh air if inhaled accidentally.
  • Skin Contact: Wash with soap and water if skin contact occurs.
  • Eye Contact: Rinse thoroughly with water if it contacts eyes.