Citric acid
- Molecular formula
- C6H8O7
- CAS Number
- 77-92-9
- IUPAC Name
- 2-hydroxybutane-1,2,3-tricarboxylic acid
- Molecular Weight
- 192.12g/mol
- Melting Point
- (Celsius)
- Boiling Point
- (Celsius)
- Density
- 1.6650g/cm3
- Synonyms
- 2-Methylcitric acid
Identification
Interesting Facts about 2-Hydroxybutane-1,2,3-tricarboxylic Acid
2-Hydroxybutane-1,2,3-tricarboxylic acid, more commonly known as citric acid, is a fascinating organic compound with a range of applications and properties that intrigue chemists and biologists alike.
Applications in Daily Life
- Food Industry: Citric acid is widely used as a natural preservative and flavoring agent in beverages, candies, and other food products.
- Pharmaceuticals: It plays a crucial role in enhancing the absorption of certain medications and is often included in effervescent formulations.
- Cosmetics: Due to its acidic nature, citric acid is commonly used in skincare products to adjust pH levels and act as an exfoliant.
Biological Significance
Moreover, citric acid is a key player in metabolic pathways, particularly the citric acid cycle (or Krebs cycle), which is vital for energy production in living organisms. It serves as a crucial intermediate that aids in:
- Energy generation through the oxidation of carbohydrates, fats, and proteins.
- Decomposition of nutrients within the mitochondria.
Unique Characteristics
Some notable attributes of 2-hydroxybutane-1,2,3-tricarboxylic acid include:
- It exhibits a complex structure with multiple carboxyl groups, which contributes to its high acidity.
- Citric acid can chelate metals, making it useful in various cleaning agents and for removing limescale.
- Its presence in citrus fruits is why these fruits are often associated with a sharp, tangy flavor.
In summary, 2-hydroxybutane-1,2,3-tricarboxylic acid is not just a compound with diverse practical uses, but also an essential component of biological systems that aids in energy metabolism. Its multifaceted properties make it a compound of great interest across several fields.