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Sunset Yellow FCF

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Identification
Molecular formula
C16H10N2Na2O7S2
CAS number
2783-94-0
IUPAC name
sodium;4-[(2-hydroxy-1-naphthyl)azo]-3-methyl-benzenesulfonate
State
State

At room temperature, Sunset Yellow FCF is typically in a solid state as a powder or granule. It is stable under regular conditions of use.

Melting point (Celsius)
300.00
Melting point (Kelvin)
573.15
Boiling point (Celsius)
300.00
Boiling point (Kelvin)
573.15
General information
Molecular weight
452.38g/mol
Molar mass
452.3760g/mol
Density
1.2470g/cm3
Appearence

Sunset Yellow FCF appears as a reddish-yellow to orange powder or granule. It is commonly used as a synthetic dye in food products and is known for its brilliant coloring properties, providing a vibrant hue to products it is added to.

Comment on solubility

Solubility of Sodium 4-[(2-hydroxy-1-naphthyl)azo]-3-methyl-benzenesulfonate

The solubility characteristics of sodium 4-[(2-hydroxy-1-naphthyl)azo]-3-methyl-benzenesulfonate are quite interesting due to its unique molecular structure. This compound is generally soluble in water, which can be attributed to the presence of the sulfonate group (-SO₃Na). This group enhances the hydrophilicity of the molecule, allowing it to interact favorably with water. Here are some key points to consider about its solubility:

  • Polar Functional Groups: The hydroxyl group (-OH) and sulfonate group contribute to the compound's polarity, facilitating its dissolution in polar solvents like water.
  • Concentration Dependency: While the compound dissolves readily in water, the solubility may vary with temperature and concentration, which can influence overall solvation dynamics.
  • Comparison to Analogous Compounds: Compared to non-polar analogs or those lacking ionic characteristics, this compound exhibits significantly greater solubility.

In summary, sodium 4-[(2-hydroxy-1-naphthyl)azo]-3-methyl-benzenesulfonate is characterized by its good solubility in water owing to its ionic and polar groups. As a prediction, one could state that “the more polar the compound, the greater its affinity for a polar solvent”, which clearly applies to this molecule in aquatic environments.

Interesting facts

Interesting Facts about Sodium;4-[(2-Hydroxy-1-naphthyl)azo]-3-methyl-benzenesulfonate

This chemical compound, often referred to by its systematic name, exhibits fascinating properties and applications that highlight its significance in various fields.

Key Characteristics

  • Versatile Dye Component: This compound is important in the dye industry, particularly as an azo dye. Its structure allows it to impart vivid colors to textiles and other materials.
  • pH Indicator: The presence of hydroxy groups in its structure allows it to act as a pH indicator, changing color based on the acidity or basicity of the solution.
  • Biological Relevance: Azo compounds like this one have been studied for their potential in biological applications, including antibacterial and antifungal properties.

Applications in Research and Industry

Due to its unique chemical properties, sodium;4-[(2-hydroxy-1-naphthyl)azo]-3-methyl-benzenesulfonate finds applications in:

  • Analytical chemistry for colorimetric determinations.
  • Biochemical assays for detecting various substances in samples.
  • Textile and dye manufacturing processes.

Potential Environmental Concerns

Despite its usefulness, azo dyes have been scrutinized due to potential environmental impacts, particularly in wastewater.

  • Some azo compounds can break down to release harmful amines, raising toxicity concerns.
  • Regulatory bodies monitor the use of such dyes to prevent environmental contamination.

Noteworthy Facts

In scholarly literature, this compound has been referenced in numerous studies concerning:

  • Developing more sustainable dyeing processes.
  • Investigating the interactions between azo compounds and biological systems.
  • Innovations in colorimetric sensors for environmental monitoring.

To sum it up, sodium;4-[(2-hydroxy-1-naphthyl)azo]-3-methyl-benzenesulfonate is not just another chemical; it represents a blend of color, chemistry, and environmental science. As the saying goes, "Every molecule tells a story," and this compound certainly has a vibrant narrative of its own!