Skip to main content

Sunset Yellow FCF

ADVERTISEMENT
Identification
Molecular formula
C16H10Na2N2O7S2
CAS number
2783-94-0
IUPAC name
disodium;3-hydroxy-4-(4-methyl-2-sulfonato-phenyl)azo-naphthalene-2-carboxylate
State
State

At room temperature, Sunset Yellow FCF is a solid. It is typically available in powdered form and is highly soluble in water.

Melting point (Celsius)
300.00
Melting point (Kelvin)
573.00
Boiling point (Celsius)
0.00
Boiling point (Kelvin)
0.00
General information
Molecular weight
452.37g/mol
Molar mass
452.3720g/mol
Density
1.6100g/cm3
Appearence

Sunset Yellow FCF appears as an orange-red powder or granule. It is commonly used as a food coloring agent and is known for its vivid hue.

Comment on solubility

Solubility of Disodium 3-Hydroxy-4-(4-Methyl-2-Sulfonato-Phenyl)Azo-Naphthalene-2-Carboxylate

The compound disodium 3-hydroxy-4-(4-methyl-2-sulfonato-phenyl)azo-naphthalene-2-carboxylate is known for its intriguing solubility characteristics. The solubility of this compound can be understood through several key factors:

  • Ionic nature: Being a disodium salt, this compound readily dissociates in aqueous solutions, enhancing its solubility due to the presence of charged species.
  • Polar functional groups: The sulfonate (-SO₃⁻) and carboxylate (-COO⁻) groups contribute significantly to the polar interactions with water, promoting solubility.
  • Hydrogen bonding: The hydroxyl (-OH) group allows for further hydrogen bonding with water molecules, facilitating dissolution.

Typically, you can expect good solubility in polar solvents like water, while solubility in non-polar solvents may be limited. It is important to note that this solubility can be influenced by factors such as:

  • Temperature: Increased temperatures generally enhance solubility for many ionic compounds.
  • pH levels: The acidic or basic nature of a solution may alter the ionization of functional groups, affecting how well the compound dissolves.
  • Presence of other ions: The presence of competing ions in solution can lead to various solubility outcomes.

In conclusion, the solubility of disodium 3-hydroxy-4-(4-methyl-2-sulfonato-phenyl)azo-naphthalene-2-carboxylate is primarily characterized by its ability to dissolve well in polar environments due to its ionic and polar properties, making it a versatile compound for various applications!

Interesting facts

Interesting Facts about Disodium 3-Hydroxy-4-(4-methyl-2-sulfonato-phenyl)azo-naphthalene-2-carboxylate

Disodium 3-hydroxy-4-(4-methyl-2-sulfonato-phenyl)azo-naphthalene-2-carboxylate is a fascinating chemical compound often utilized in various applications, primarily due to its vibrant color properties and versatility in scientific research.

Key Characteristics:

  • Dye Properties: This compound functions as a dye, particularly in textile and food industries, providing bright, appealing colors.
  • pH Indicator: It acts as a pH indicator; its color changes at specific pH levels, making it useful in titrations and other laboratory analyses.
  • Chemical Structure: The presence of the azo group (–N=N–) significantly impacts the electronic interactions and stability of the compound, enhancing its applicability as a colorant.

Moreover, its sulfonate group contributes to the compound's solubility in water, allowing for easier application in various formulations. Some noteworthy aspects of this compound include:

Applications:

  • Textiles: Frequently used in dyeing processes to impart color to fabrics.
  • Food Industry: Acts as a food coloring agent, ensuring vivid hues in various edible products.
  • Scientific Research: A valuable tool in laboratories for studying pH levels and chemical reactions.

As noted by chemist Sir William Henry Perkin, who pioneered aniline dyes in the late 19th century, "Color in chemistry is not just an aesthetic choice; it reveals much about the interactions and structures of substances." This perspective highlights the importance of compounds like disodium 3-hydroxy-4-(4-methyl-2-sulfonato-phenyl)azo-naphthalene-2-carboxylate in both practical applications and theoretical studies.

In conclusion, disodium 3-hydroxy-4-(4-methyl-2-sulfonato-phenyl)azo-naphthalene-2-carboxylate stands out not just for its functional properties but also for its integral role in bridging science and industry, showcasing the vibrant intersection of color and chemistry.