Skip to main content

Acid Orange 7

ADVERTISEMENT
Identification
Molecular formula
C16H11Cl2N3O4S
CAS number
633-96-5
IUPAC name
4,5-dichloro-2-[(2-hydroxy-1-naphthyl)azo]benzenesulfonic acid
State
State

At room temperature, Acid Orange 7 is in a solid state, typically found in powdered form.

Melting point (Celsius)
330.00
Melting point (Kelvin)
603.15
Boiling point (Celsius)
0.00
Boiling point (Kelvin)
0.00
General information
Molecular weight
327.19g/mol
Molar mass
327.1970g/mol
Density
1.5400g/cm3
Appearence

Acid Orange 7 typically appears as a reddish-orange powder. It is often used in dyeing applications and can also form solutions that have a distinct orange hue.

Comment on solubility

Solubility of 4,5-Dichloro-2-[(2-Hydroxy-1-naphthyl)azo]benzenesulfonic Acid

The compound 4,5-dichloro-2-[(2-hydroxy-1-naphthyl)azo]benzenesulfonic acid, known for its vivid color and application in dye chemistry, exhibits unique solubility properties that are important for its functionality.

Here are some key aspects regarding its solubility:

  • Aqueous Solubility: This compound is generally soluble in water due to the presence of the sulfonic acid group, which enhances its interaction with polar solvent molecules.
  • Solvent Behavior: It shows better solubility in organic solvents, especially those containing polar functional groups, thus allowing for use in various reactions and applications.
  • Influence of pH: The solubility can significantly change with varying pH levels. In more acidic conditions, the sulfonic acid group remains protonated, which may enhance solubility.
  • Temperature Dependency: As with many compounds, an increase in temperature may increase solubility by providing energy that overcomes intermolecular forces.

In summary, the solubility of 4,5-dichloro-2-[(2-hydroxy-1-naphthyl)azo]benzenesulfonic acid is influenced by various factors including solvent type, temperature, and pH levels. This enhances its utility in both aqueous and organic environments during chemical processes.

Interesting facts

Interesting Facts about 4,5-Dichloro-2-[(2-Hydroxy-1-naphthyl)azo]benzenesulfonic Acid

4,5-Dichloro-2-[(2-hydroxy-1-naphthyl)azo]benzenesulfonic acid, often referred to as a versatile azo dye, is a compound with a rich history in both research and industrial applications. Its complex structure bestows it with unique properties that have made it a key player in various fields. Here are some fascinating insights:

  • Azo Dyes Background: This compound belongs to the azo dye family, characterized by the presence of the azo group (-N=N-). Azo dyes are notable for their vibrant colors and are widely used in the textile industry.
  • Industrial Use: This specific compound is utilized in dyeing wool, silk, and nylon fabrics, providing a striking, long-lasting color that resists fading.
  • Biomedical Potential: Recent studies have explored the anticancer properties of azo compounds. Researchers have found that some azo dyes exhibit promising activities against various cancer cell lines.
  • Colorimetric Applications: Due to its intense coloration, 4,5-dichloro-2-[(2-hydroxy-1-naphthyl)azo]benzenesulfonic acid is also employed in colorimetric assays, which are vital for quantitative analysis in laboratory settings.
  • Environmental Concerns: The use of azo dyes has raised environmental concerns due to potential toxicity and carcinogenicity. As a result, there are ongoing efforts to develop safer alternatives while ensuring efficient wastewater treatment methods for dye removal.

In the words of a renowned chemist, “The exploration of azo compounds continues to reveal their diverse potential and the importance of understanding their impact across multiple sectors.” This statement encapsulates the intrigue surrounding 4,5-dichloro-2-[(2-hydroxy-1-naphthyl)azo]benzenesulfonic acid and similar compounds in modern chemistry.


With its broad array of applications, scientific exploration, and the need for environmental mindfulness, this compound stands as a testament to the intricate balance between progress and responsibility in chemical science.