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Naphthol Yellow S

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Identification
Molecular formula
C10H4Na2O7S2
CAS number
1329-77-1
IUPAC name
disodium;3-hydroxynaphthalene-2,7-disulfonate
State
State
This compound exists as a solid at room temperature.
Melting point (Celsius)
300.00
Melting point (Kelvin)
573.00
Boiling point (Celsius)
0.00
Boiling point (Kelvin)
0.00
General information
Molecular weight
360.29g/mol
Molar mass
360.2900g/mol
Density
1.8600g/cm3
Appearence
Naphthol Yellow S typically appears as a yellow to orange powder.
Comment on solubility

Solubility of Disodium 3-Hydroxynaphthalene-2,7-disulfonate

Disodium 3-hydroxynaphthalene-2,7-disulfonate (commonly known as Disodium Naphthalenesulfonate) exhibits remarkable solubility properties due to its ionic nature. This compound is characterized by the presence of sulfonate groups that enhance its affinity for polar solvents, particularly water. Here are some key points regarding its solubility:

  • Highly Soluble in Water: Disodium 3-hydroxynaphthalene-2,7-disulfonate is known for its excellent solubility in aqueous solutions, primarily because its disodium form allows the compound to dissociate into ions that interact favorably with water molecules.
  • Intramolecular Interactions: The presence of hydroxyl and sulfonate groups not only stabilizes the compound in solution but also promotes hydrogen bonding with water, leading to enhanced solubility.
  • Temperature Dependency: As with many ionic compounds, the solubility may increase with temperature, allowing for a higher concentration to be achieved in solution.
  • Influence of pH: The solubility can be affected by changes in pH, where acidic or basic environments may lead to modifications in the charge state and solvation of the compound.

Due to these characteristics, Disodium 3-hydroxynaphthalene-2,7-disulfonate finds applications in various fields such as dyeing, detergency, and as a dispersant in different formulations. Understanding its solubility is crucial for optimizing its use in practical applications.

Interesting facts

Interesting Facts about Disodium 3-Hydroxynaphthalene-2,7-disulfonate

Disodium 3-hydroxynaphthalene-2,7-disulfonate is a fascinating chemical compound that often attracts attention in both research and industrial applications. Here are some intriguing insights:

  • Structure and Properties: This compound belongs to the class of naphthalene derivatives. The presence of sulfonate groups (–SO3⁻) significantly enhances its solubility in water and makes it an important candidate in various aqueous applications.
  • Applications in Dyes: Its sulfonate groups make this compound a useful intermediate in the synthesis of dyes and pigments. The ability to modify its chemical structure opens avenues for producing vibrant and stable colorants.
  • Role in Biochemical Studies: Disodium 3-hydroxynaphthalene-2,7-disulfonate is often utilized as a fluorescent probe in biochemical assays. Researchers have leveraged its fluorescent properties to study enzyme activities and interactions within biological systems.
  • Potential Environmental Benefits: The compound has shown promise in applications related to water treatment. Its ability to form complexes with metal ions can help in the remediation of contaminated water sources.
  • Innovation in Chemical Synthesis: This compound serves as a precursor in the synthesis of novel materials, including polymers and nanomaterials, which are being explored for applications in electronics and nanotechnology.

In summary, disodium 3-hydroxynaphthalene-2,7-disulfonate is more than just a chemical entity; it represents the intersection of organic chemistry and practical applications that benefit both the scientific community and industry. As we continue to explore its unique properties, we can expect to uncover even more exciting uses!

Synonyms
135-51-3
R salt
Sodium 3-hydroxynaphthalene-2,7-disulfonate
Disodium 2-naphthol-3,6-disulfonate
disodium 3-hydroxynaphthalene-2,7-disulfonate
2-Naphthol-3,6-disulfonic acid disodium salt
Ferricon
Fericon
R-salt
3-Hydroxynaphthalene-2,7-disulfonic acid disodium salt
CCRIS 7448
Disodium 3-hydroxy-2,7-naphthalenedisulfonate
3-Hydroxy-2,7-naphthalenedisulfonic acid disodium salt
NSC 5872
EINECS 205-196-3
6Y99O91ULZ
DTXSID8044543
AI3-28535
2-Naphthol-3,6-disulfonic acid sodium salt
Disodium 3-hydroxynaphthalene-2,7-disulphonate
2-Naphthol-3,6-disulfonic acid, disodium salt
Disodium 2-hydroxy-3,6-naphthalene disulfonate
MFCD00065915
3-Hydroxynapthlene-2,7-disulfonic acid sodium salt
3-Hydroxynaphthalene-2,7-disulfonic acid, disodium salt
DTXCID6024543
2,7-NAPHTHALENEDISULFONIC ACID, 3-HYDROXY-, DISODIUM SALT
NSC-5872
3-hydroxy-2,7-naphthalenedisulfonic acid, disodium salt
2,7-Naphthalenedisulfonic acid, 3-hydroxy-, sodium salt (1:2)
3-Hydroxynaphthalene-2,7-disulfonic Acid Disodium Salt (Technical Grade)
UNII-6Y99O91ULZ
Rsalt
Ferricon (TN)
R Acid Disodium Salt
SCHEMBL448933
CHEMBL3183365
Disodium 2naphthol3,6disulfonate
Tox21_301601
AKOS003237104
AKOS015900242
FD40998
2Naphthol3,6disulfonic acid sodium salt
NCGC00255763-01
AS-15462
CAS-135-51-3
SY037070
Disodium 3hydroxynaphthalene2,7disulphonate
DB-042294
Disodium 2hydroxy3,6naphthalene disulfonate
Disodium 3-hydroxy-2,7-naphalenedisulfonate
N0029
NS00079296
Disodium 2-hydroxynaphthalene-3,6-disulfonate
disodium;3-hydroxynaphthalene-2,7-disulfonate
H11851
3-Hydroxynaphthalene-2,7-disulfonicaciddisodiumsalt
3Hydroxy2,7naphthalenedisulfonic acid disodium salt
3Hydroxynaphthalene2,7disulfonic acid, disodium salt
Disodium 3-hydroxynaphthalene-2,7-disulfonate, tech
3-Hydroxynaphthalene-2,7-disulfonicacid disodium salt
Q27265717
2,7Naphthalenedisulfonic acid, 3hydroxy, disodium salt
2-hydroxynaphthalene-3,6-disulphonic acid di sodium salt
3-Hydroxy-2,7-naphthalenedisulfonic acid,disodium salt
2,7Naphthalenedisulfonic acid, 3hydroxy, sodium salt (1:2)
2-Naphthol-3,6-disulfonic acid disodium salt, Disodium 3-hydroxy-2,7-naphthalenedisulfonate, R-Acid sodium salt