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Brilliant Black BN

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Identification
Molecular formula
C34H22N6O11S3
CAS number
2519-30-4
IUPAC name
5-(4-hydroxyphenyl)azo-2-[2-[4-(4-hydroxyphenyl)azo-2-sulfo-phenyl]vinyl]benzenesulfonic acid
State
State

At room temperature, Brilliant Black BN is in a solid state, typically provided in powdered or granular form.

Melting point (Celsius)
300.00
Melting point (Kelvin)
573.15
Boiling point (Celsius)
250.00
Boiling point (Kelvin)
523.15
General information
Molecular weight
774.76g/mol
Molar mass
774.7000g/mol
Density
1.6100g/cm3
Appearence

Brilliant Black BN is a dark black or brown powder or granules often used as a dye. It is notable for its strong black pigmentation and is utilized in various applications requiring a black dye.

Comment on solubility

Solubility of 5-(4-hydroxyphenyl)azo-2-[2-[4-(4-hydroxyphenyl)azo-2-sulfo-phenyl]vinyl]benzenesulfonic acid

This compound, known for its complex azo structure, exhibits unique solubility properties influenced by its functional groups. Understanding the solubility characteristics of such a compound is crucial for its applications in various fields, particularly in dye chemistry.

Solubility Characteristics:

  • Aqueous Solubility: Given its sulfonic acid group, the compound is likely to be highly soluble in water. The sulfonic group (-SO₃H) contributes to its ability to form strong hydrogen bonds with water molecules.
  • Organic Solvents: While it's primarily soluble in polar solvents due to its ionic nature, the presence of aromatic rings may provide some solubility in less polar organic solvents, though to a lesser degree.
  • pH Influence: The solubility may also vary significantly with changes in pH, as protonation or deprotonation of the sulfonic acid group can alter its ionic state, affecting solubility.
  • Temperature Effects: Increased temperature can enhance solubility due to higher kinetic energy breaking solute-solvent interactions.

As a dye, the solubility of 5-(4-hydroxyphenyl)azo-2-[2-[4-(4-hydroxyphenyl)azo-2-sulfo-phenyl]vinyl]benzenesulfonic acid is essential for its effectiveness and application in textile and ink formulations. Therefore, understanding its solubility profile provides valuable insight into its practical use.

Interesting facts

Interesting Facts about 5-(4-hydroxyphenyl)azo-2-[2-[4-(4-hydroxyphenyl)azo-2-sulfo-phenyl]vinyl]benzenesulfonic acid

5-(4-hydroxyphenyl)azo-2-[2-[4-(4-hydroxyphenyl)azo-2-sulfo-phenyl]vinyl]benzenesulfonic acid, often referred to as a complex azo dye, possesses a unique structure that is both fascinating and significant in various applications. Here are some noteworthy aspects:

  • Color Properties: This compound is renowned for its vibrant coloration, primarily due to its azo group, which is known to produce a wide range of colors when used in dyes.
  • Uses in Industry: Azo dyes are widely utilized in textiles, food, and cosmetics. The sulfonic acid group enhances its solubility in water, making it ideal for use in different formulations.
  • Biocompatibility: Its distinct chemical structure, especially the presence of hydroxy groups, can impart biocompatibility, opening avenues in biomedical applications.
  • Environmental Impact: The usage of azo dyes often raises environmental concerns due to the potential formation of hazardous breakdown products. This has led to increased interest in alternatives and modifications to reduce toxicity.
  • Chemical Reactivity: Azo compounds typically undergo a variety of chemical reactions, such as reduction to amines, which can be useful in organic synthesis.

As a student or a scientist, one should recognize that the study of such compounds is crucial, not only for their practical application but also for understanding the broader implications of chemical safety and environmental sustainability. _"Chemistry is the central science,"_ and compounds like this illustrate its intricate and often surprising interconnections.

Synonyms
C.I. DIRECT YELLOW 4
DTXSID1059022
C.I. Direct Yellow 4 (VAN)
DTXCID5048714
91-34-9
5-[(4-hydroxyphenyl)diazenyl]-2-[2-[4-[(4-hydroxyphenyl)diazenyl]-2-sulfophenyl]ethenyl]benzenesulfonic acid