Propionaldehyde, systematically named propanal, is a three-carbon aliphatic aldehyde with the chemical formula C₃H₆O and CAS Number 123-38-6. It appears as a colorless, flammable liquid with a pungent, fruity, or suffocating odor. It is widely used as a versatile chemical intermediate in organic synthesis, plastics production, and specialty chemicals.

 

Technical Specifications

ITEMS SPECIFICATIONS
Appearance Colorless liquid and no visible impurities
Purity ≥99.5%
Water ≤0.2%
Acid ≤0.2%

 

Package & Storage

  • Net weight 160kgs drum, 12.8MT/20’FCL with pallets.
  • Propionaldehyde is easy to oxidize and generate acid, should avoid contact with air, stored under nitrogen protection. Usually use aluminum or stainless steel containers, can also use phenolic resin lined carbon steel containers, according to the provisions of the flammable chemicals storage and transportation.

 

Applications and Uses of Propionaldehyde

Chemical and Plastic Industry:

  • Primary intermediate for propionic acid production via oxidation.
  • Precursor to n-propanol through hydrogenation.
  • Used in synthesis of trimethylolethane, alkyd resins, polyvinyl plastics, and rubber chemicals.
  • Chain terminator in ethylene polymerization.

Agrochemicals and Pharmaceuticals

  • Building block for herbicides, pesticides, insecticides, and pharmaceutical intermediates.
  • Supports synthesis of active ingredients in crop protection and drug manufacturing.

Flavor, Fragrance, and Food

Synthetic flavoring substance for imparting fruity, cocoa, nutty, or wine-like notes in low concentrations.

Other Industrial Uses

  • Disinfectant and preservative applications.
  • Intermediate in fine chemicals, coatings, textiles, feed additives, and antioxidants.

 

Frequently Asked Questions (FAQs)

Q: Is Propionaldehyde used in food or flavors?
A: Yes, it is approved as a synthetic flavoring substance for low-level use in foods to impart fruity notes.

Q: What are the main derivatives of Propionaldehyde?
A: Key products include propionic acid (via oxidation), n-propanol (via reduction), trimethylolethane, alkyd resins, and various agrochemical/pharmaceutical intermediates.

Q: How should Propionaldehyde be stored safely?
A: Store in cool, dry, well-ventilated areas under inert atmosphere; protect from light, heat, and oxidants to avoid peroxide formation or polymerization.

Q: What safety precautions are needed when handling Propionaldehyde?
A: Use explosion-proof equipment; wear appropriate PPE; ensure good ventilation; avoid open flames due to high flammability.

 

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