Glyoxal, Oxaldehyde, Ethanedial, Glyoxaldehyde, Oxalaldehyde, Ethanedialdehyde, (%40), 107-22-2

Glyoxal, Oxaldehyde, Ethanedial, Glyoxaldehyde, Oxalaldehyde, Ethanedialdehyde, (%40), 107-22-2

Glyoxal, with the chemical formula C₂H₂O₂, is an organic compound and the smallest dialdehyde, containing two aldehyde groups. Here are some key points about glyoxal:

1. Physical Properties:

   • Appearance: At low temperatures, it appears as white crystals. Near its melting point (15°C), it becomes a yellow crystalline solid. In its liquid form, it is yellow, and its vapor is green.

   • Melting Point: 15°C.

   • Boiling Point: 51°C.

   • Density: 1.27 g/cm³ (40% aqueous solution).

2. Chemical Properties:

   • Reactivity: It mixes with water and forms various hydrates.

   • pH: A 40% aqueous solution has a pH of 2.1 - 2.7.

3. Uses:

   • Industrial Production: Used as a precursor for many products.

   • Cosmetics: Acts as an antimicrobial preservative.

Glyoxal is known by several other names, including:

• Oxaldehyde

• Ethanedial

• Glyoxaldehyde

• Oxalaldehyde

• Ethanedialdehyde