Sunset Yellow FCF | Solubility of Things

Identification

Molecular formula

C₁₆H₁₀Na₂O₇S₂

CAS number

2783-94-0

IUPAC name

sodium;4-(2,4-dihydroxyphenyl)azobenzenesulfonate

State

At room temperature, Sunset Yellow FCF is typically a solid in the form of a fine powder. It is stable under normal conditions and should be stored in a cool, dry place.

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

452.3670g/mol

Density

1.1180g/cm³

Appearence

Sunset Yellow FCF appears as an orange-red powder. It is commonly used as a synthetic food colorant and is known for its vibrant hue. The compound is often supplied as a disodium salt, and its appearance can vary slightly depending on its purity and form. It is water-soluble, producing a bright yellow to orange solution when dissolved.

Comment on solubility

Solubility of Sodium 4-(2,4-Dihydroxyphenyl)azobenzenesulfonate

Sodium 4-(2,4-dihydroxyphenyl)azobenzenesulfonate, often referred to as a dye or coloring agent, exhibits interesting solubility characteristics. Here are some key points to consider:

Solvent Compatibility: This compound is highly soluble in water, which makes it useful in various aqueous applications.
Temperature Influence: The solubility can vary with temperature; generally, increasing the temperature enhances solubility in water.
pH Effect: The solubility of this compound may also be influenced by the pH of the solution, showing increased solubility in alkaline conditions.
Overall Trends: The presence of sulfonate groups significantly contributes to its excellent solubility profile.

To summarize, sodium 4-(2,4-dihydroxyphenyl)azobenzenesulfonate is known for its remarkable solubility in water, with factors such as temperature and pH playing vital roles in its solubility behavior. As stated in many sources, "the presence of ionic groups often leads to enhanced solubility in polar solvents." This characteristic makes it a versatile compound for various industrial and laboratory applications.

Interesting facts

Interesting Facts about Sodium 4-(2,4-Dihydroxyphenyl)azobenzenesulfonate

Sodium 4-(2,4-dihydroxyphenyl)azobenzenesulfonate is a fascinating chemical compound that belongs to the family of azo compounds, which are known for their vibrant colors and various applications. Here are some remarkable facts about this compound:

Azo Compound Significance: Azo compounds, including sodium 4-(2,4-dihydroxyphenyl)azobenzenesulfonate, are characterized by the N=N double bond. This bond is responsible for the intense colors that many of these compounds exhibit, making them valuable in synthetic dye production.
Biological Applications: Due to its unique structure, the compound is researched for its potential in pharmaceuticals. Its ability to interact with biological systems can lead to advancements in drug development, particularly in areas such as targeting specific tissues or cells.
Environmental Impact: Azo dyes are often scrutinized for their environmental impact and toxicity. Hence, sodium 4-(2,4-dihydroxyphenyl)azobenzenesulfonate can be a focus in studies aiming to develop safer alternatives or better waste treatment methods.
Color Reaction: One of the intriguing aspects of azo compounds is their potential to change color when subjected to different pH levels. This property can be utilized in pH indicators or colorimetric assays.
Textile Industry Role: This compound may contribute to the textile industry as a dye, offering a bright coloration that has applications in producing textiles, paper, and various other materials.

In conclusion, sodium 4-(2,4-dihydroxyphenyl)azobenzenesulfonate serves not only as a model for studying azo compounds but also as a bridge to advancements in various fields, from medicine to environmental science. As research continues, the potential for this compound may lead to exciting innovations.