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Sorbic acid

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Identification
Molecular formula
C6H8O2
CAS number
110-44-1
IUPAC name
hexa-2,4-dienoic acid
State
State

At room temperature, sorbic acid is in a solid state. It is often used in its crystalline or powder form and is stable under normal conditions. It is primarily used as a preservative in the food industry.

Melting point (Celsius)
134.50
Melting point (Kelvin)
407.70
Boiling point (Celsius)
228.00
Boiling point (Kelvin)
501.00
General information
Molecular weight
112.13g/mol
Molar mass
112.1280g/mol
Density
1.2041g/cm3
Appearence

Sorbic acid appears as a white, free-flowing crystalline powder or colorless needles. It is known for its slight characteristic aroma and has a distinct bitter taste. It is soluble in water and organic solvents.

Comment on solubility

Solubility of Hexa-2,4-dienoic Acid (C6H8O2)

Hexa-2,4-dienoic acid, also known as sorbic acid, displays interesting solubility properties that are essential for its applications in various fields. Generally, the solubility of this compound can be characterized as follows:

  • Water Solubility: Hexa-2,4-dienoic acid has limited solubility in water, typically dissolving in approximately 1-2 g/L at room temperature. This low solubility is attributed to the hydrophobic nature of the long alkyl chain.
  • Solubility in Organic Solvents: It exhibits notable solubility in many organic solvents, including ethanol, ether, and chloroform. This feature enhances its utility in organic synthesis and applications.
  • pH Dependence: The solubility can be influenced by pH; in alkaline conditions, the acid can dissociate, leading to increased solubility. Thus, “in a higher pH environment, the compound becomes more soluble”.

In summary, while hexa-2,4-dienoic acid may not be highly soluble in water, its solubility characteristics in organic solvents and the influence of pH make it a versatile compound in chemical applications.

Interesting facts

Interesting Facts about Hexa-2,4-dienoic Acid

Hexa-2,4-dienoic acid, commonly known as sorbic acid, is a fascinating compound with various applications and properties that make it noteworthy in both the chemical and food industries. Here are some intriguing points about this compound:

  • Natural Occurrence: Hexa-2,4-dienoic acid is naturally found in some berries and fruits. It is believed to play a role in the plant's defense mechanisms against microbial growth.
  • Preservative Properties: This compound is primarily used as a food preservative due to its ability to inhibit the growth of mold, yeast, and bacteria. It effectively extends the shelf life of many perishable products.
  • Versatile Applications: Beyond the food industry, hexa-2,4-dienoic acid is also utilized in the production of various products including cosmetics, pharmaceuticals, and even as a plasticizer in polymers.
  • Health Perspective: This acid has been recognized for its low toxicity levels, making it a safer alternative to some synthetic preservatives. Nevertheless, it is prudent to monitor its usage, as some individuals may have sensitivities.
  • Chemical Behavior: Chemically, hexa-2,4-dienoic acid features conjugated double bonds, which contribute to its reactivity and stability. This unique structure makes it an interesting molecule for research in organic chemistry.

In summary, hex-2,4-dienoic acid serves not only as an effective preservative but also illustrates the intricate links between chemistry and everyday life. Its natural origins and diverse applications make it a significant subject of study in food science and beyond. As noted by a leading expert in food chemistry, "Understanding the chemical properties of compounds like hexa-2,4-dienoic acid opens up new avenues for innovation in food preservation and safety."

Synonyms
Hexa-2,4-diensA currencyure
2,4 hexadienoic acid
CHEMBL4303486
DTXSID20859193
WSWCOQWTEOXDQX-UHFFFAOYSA-N
5309-56-8
LMFA01031012
AKOS030229959