Skip to main content

3-Hydroxynaphthalene-2,7-disulfonic acid

ADVERTISEMENT
Identification
Molecular formula
C10H8O7S2
CAS number
133-46-2
IUPAC name
3-hydroxynaphthalene-2,7-disulfonic acid
State
State

Solid at room temperature, usually handled as its sodium salt for greater stability and solubility.

Melting point (Celsius)
300.00
Melting point (Kelvin)
573.15
Boiling point (Celsius)
860.00
Boiling point (Kelvin)
1 133.15
General information
Molecular weight
302.30g/mol
Molar mass
302.2950g/mol
Density
1.8000g/cm3
Appearence

3-Hydroxynaphthalene-2,7-disulfonic acid typically appears as a white to light yellow crystalline powder. It is often used in its sodium salt form, which appears similarly.

Comment on solubility

Solubility of 3-Hydroxynaphthalene-2,7-disulfonic Acid

3-Hydroxynaphthalene-2,7-disulfonic acid, also known as 3-Hydroxy-2,7-naphthalene disulfonic acid, displays interesting solubility characteristics that are influenced by its chemical structure. This compound is a strong acid due to the presence of sulfonic acid groups, which significantly enhances its solubility in various solvents.

  • Water Solubility: 3-Hydroxynaphthalene-2,7-disulfonic acid is highly soluble in water. The sulfonic acid groups (-SO3H) facilitate hydrogen bonding and ionic interactions with water molecules, making it easy for the compound to dissolve.
  • Organic Solvents: Its solubility in organic solvents is comparatively lower. However, it can dissolve in polar organic solvents like dimethyl sulfoxide (DMSO) and methanol to a certain extent.
  • pH Dependency: The solubility of this compound can also change with the pH of the solution. In more acidic or basic conditions, the solubility might vary due to protonation or deprotonation of the functional groups present.
  • Temperature Effects: As with many compounds, an increase in temperature generally enhances solubility. Thus, this compound may demonstrate greater solubility at elevated temperatures.

To summarize, the remarkable solubility characteristics of 3-hydroxynaphthalene-2,7-disulfonic acid make it suitable for various applications in both aqueous and certain organic systems. Its highly soluble nature is primarily due to the influence of its strongly acidic functional groups, showcasing the importance of molecular structure in determining solubility.

Interesting facts

Interesting Facts about 3-Hydroxynaphthalene-2,7-Disulfonic Acid

3-Hydroxynaphthalene-2,7-disulfonic acid is a fascinating compound that belongs to the naphthalene family, which is known for its unique aromatic structure. This compound, often referred to in biochemical studies, has several intriguing properties and applications:

  • Industrial Applications: It is commonly used as a dye and a reagent in various chemical reactions, making it valuable in both textile and chemical industries.
  • Environmental Role: This compound has been studied for its potential role in environmental pollution, particularly in its interaction with heavy metals, which can affect its toxicological profiles.
  • Biological Importance: Research indicates that derivatives of naphthalene sulfonic acids can influence biological systems, giving insights into metabolic processes.
  • Synthetic Pathways: The synthesis of this compound can involve different methodologies, often showcasing the versatility of synthetic organic chemistry.

Furthermore, 3-hydroxynaphthalene-2,7-disulfonic acid exhibits interesting chemical behavior due to its sulfonic groups which enhance its solubility and reactivity. As a student of chemistry, one might be intrigued by the compound's potential for developing new materials or its use in analytical chemistry as a standard for calibrating spectrometric techniques.

In summary, this compound is not just a mere chemical entity; it represents a rich area of study that bridges industrial chemistry, environmental science, and biological research, making it a notable compound in the field of chemistry.

Synonyms
148-75-4
3-Hydroxynaphthalene-2,7-disulphonic acid
2-NAPHTHOL-3,6-DISULFONIC ACID
3-hydroxynaphthalene-2,7-disulfonic acid
R Acid
2,7-Naphthalenedisulfonic acid, 3-hydroxy-
2,7-Naphthalenedisulfonicacid, 3-hydroxy-
EINECS 205-724-2
UNII-UHI9372R49
UHI9372R49
3-hydroxy-2,7-naphthalenedisulfonic acid
2-NAPHTHOL-3,6-DISULFONIC ACID [MI]
15883-57-5
3-Hydroxy-2,7-naphthalenedisulfonic Acid Sodium Salt > 90%
R-Saure
SCHEMBL589951
CHEMBL3306888
DTXSID6045032
AKOS003233466
2-Hydroxy-3,6-naphthalenedisulfonic acid
AS-82019
NS00024872
2-naphthol-3,6-disulfonic acid, sodium salt
3-Hydroxy-2,7-naphthalenedisulfonic Acid Sodium Salt
Q15726104