Propionaldehyde

Propionaldehyde CAS Number 123-38-6. It is a colorless, flammable liquid characterized by a pungent, fruity, and slightly irritating odor. widely used as a key intermediate in organic synthesis, fragrance production, and food flavor formulations.

Appearance:
Colorless liquid
CAS No.:
123-38-6
Molecular Formula:
C3H6O
Molecular Weight:
58.08
EINECS:
204-623-0
Solubility:
miscible with alcohol, ether, and chloroform

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Product Description

Product Description

Propionaldehyde CAS Number 123-38-6. It is a colorless, flammable liquid characterized by a pungent, fruity, and slightly irritating odor. widely used as a key intermediate in organic synthesis, fragrance production, and food flavor formulations.

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.

Benefits of Propionaldehyde

High Reactivity:

Ideal for condensation, addition, and oxidation reactions in organic synthesis.

Key Intermediate:

Precursor to trimethylolethane (for alkyd resins), propionic acid, and various alcohols.

Flavor & Fragrance Contribution:

Used in synthesizing aroma chemicals for fresh, aldehyde-like, fruity, and green notes.

Versatile Applications:

Supports production in plastics, rubber chemicals, agrochemicals, and specialty materials.

Natural Occurrence Support:

Detected in interstellar clouds and food processing, aligning with natural-derived flavor needs.

Applications and Uses of Propionaldehyde

Chemical Synthesis and Intermediates:

Production of trimethylolethane via aldol condensation with formaldehyde, used in alkyd resins and coatings.
Synthesis of propionic acid, higher alcohols, and plasticizers.
Building block for herbicides, rubber chemicals, and polymer modifiers.

Flavor and Fragrance Industry:

Precursor for synthetic aroma compounds in food flavors, beverages, and cosmetics.
Contributes to fresh, fruity, green, and aldehyde notes in fragrance formulations.

Other Industrial Uses:

Intermediate in agrochemicals and specialty chemicals.
Used in research and laboratory synthesis as a reactive aldehyde.

Frequently Asked Questions (FAQs)

Q: Is Propionaldehyde used in food flavors?

A: Yes, Propionaldehyde serves as a precursor in synthesizing approved synthetic flavoring substances for food, beverages, and fragrances, contributing fruity and aldehyde notes when used in compliant formulations.

Q: What are the main industrial applications of Propionaldehyde?

A: It is primarily used as a chemical intermediate for producing resins (e.g., alkyds via trimethylolethane), propionic acid, rubber chemicals, agrochemicals, and aroma compounds in the fragrance industry.

Q: How should Propionaldehyde be stored to prevent hazards?

A: Store in tightly closed, grounded containers under inert gas (nitrogen/argon) in a cool, dry, well-ventilated flammable liquids area. Avoid light, air exposure (to prevent peroxide formation), heat, sparks, and incompatible materials like strong oxidizers or acids.

Q: Is Propionaldehyde the same as propionic acid or propanol?

A: No, Propionaldehyde (propanal) is the aldehyde, while propionic acid is the oxidized form and propanol is the reduced alcohol form. It is a distinct intermediate in their production pathways.