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Ponceau SX

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Identification
Molecular formula
C18H11N2Na3O10S3
CAS number
6231-70-1
IUPAC name
7-hydroxy-8-[(4-sulfo-1-naphthyl)azo]naphthalene-1,3,6-trisulfonic acid
State
State

At room temperature, Ponceau SX is typically in a solid state. It is presented as a powder or granules used mainly in dyeing applications.

Melting point (Celsius)
0.00
Melting point (Kelvin)
0.00
Boiling point (Celsius)
0.00
Boiling point (Kelvin)
0.00
General information
Molecular weight
604.52g/mol
Molar mass
604.5200g/mol
Density
1.6265g/cm3
Appearence

Ponceau SX appears as a reddish powder. It is often used as a food dye and can appear as a deep red in its dye form. It dissolves well in water, exhibiting a bright red color in solution. Its appearance can vary slightly when mixed with other substances or when in its pure form.

Comment on solubility

Solubility of 7-hydroxy-8-[(4-sulfo-1-naphthyl)azo]naphthalene-1,3,6-trisulfonic acid

7-hydroxy-8-[(4-sulfo-1-naphthyl)azo]naphthalene-1,3,6-trisulfonic acid, commonly known as a sulfonated azo dye, exhibits interesting solubility characteristics that are crucial for its applications. Here are some key points regarding its solubility:

  • Highly Soluble in Water: This compound is known to be highly soluble in aqueous solutions due to its multiple sulfonic acid groups, which enhance its ionic character and ability to interact with water molecules.
  • Effect of pH: The solubility can be influenced by the pH of the solution; with increasing acidity, the sulfonic groups may remain deprotonated, facilitating higher solubility.
  • Electrolyte Sensitivity: The presence of salts or other electrolytes in solution can also affect the solubility, possibly leading to precipitation under certain conditions.
  • Application in Dyes: The excellent solubility is one of the reasons this compound is widely used in dyeing processes, as it can easily dissolve and create vibrant colors in aqueous media.

Overall, the solubility profile of 7-hydroxy-8-[(4-sulfo-1-naphthyl)azo]naphthalene-1,3,6-trisulfonic acid underscores its versatility in various chemical applications. Its ability to dissolve readily in water makes it an exceptional candidate for formulations needing effective dye delivery.

Interesting facts

Interesting Facts about 7-hydroxy-8-[(4-sulfo-1-naphthyl)azo]naphthalene-1,3,6-trisulfonic acid

7-hydroxy-8-[(4-sulfo-1-naphthyl)azo]naphthalene-1,3,6-trisulfonic acid, commonly referred to in the scientific community for its vivid properties, is a compound with fascinating implications in various fields. Here are some insightful points about this remarkable molecule:

  • Versatility in Applications: This compound is widely used as a dye in the textile industry due to its brilliant color, making it a valuable agent in dyeing processes.
  • Analytical Chemistry: It is known for its role as a pH indicator, helping to visualize changes in acidity and alkalinity in chemical solutions.
  • Biomedical Research: Scientists have explored its potential in biomedical applications, particularly in drug delivery systems, where its sulfonic acid groups aid in solubility and interaction with biological systems.
  • Environmental Monitoring: Due to its synthetic nature, research is ongoing into its environmental impact and degradation processes, ensuring safety in ecological systems.
  • Structural Complexity: The complex structural features, including multiple sulfonic acid groups and an azo linkage, contribute to its unique chemical properties and reactivity.

As a compound rich in both color and functionality, 7-hydroxy-8-[(4-sulfo-1-naphthyl)azo]naphthalene-1,3,6-trisulfonic acid exemplifies the intersection of chemistry with materials science and environmental studies. In the words of chemists, it’s not just a molecule; it’s a bridge to innovation!

Synonyms
SCHEMBL345314
DTXSID50863622
7-Oxo-8-[2-(4-sulfonaphthalen-1-yl)hydrazinylidene]-7,8-dihydronaphthalene-1,3,6-trisulfonic acid