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4-Hydroxybenzenesulfonic acid

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Identification
Molecular formula
C6H6O4S
CAS number
98-67-9
IUPAC name
4-hydroxybenzenesulfonic acid
State
State

At room temperature, 4-Hydroxybenzenesulfonic acid exists as a solid. It is generally stable under normal conditions and is often used in its solid form.

Melting point (Celsius)
147.00
Melting point (Kelvin)
420.15
Boiling point (Celsius)
218.00
Boiling point (Kelvin)
491.15
General information
Molecular weight
174.18g/mol
Molar mass
174.1820g/mol
Density
1.4850g/cm3
Appearence

4-Hydroxybenzenesulfonic acid typically appears as a white to pale yellow crystalline powder. It is hygroscopic, meaning it can absorb moisture from the air. The crystals are often characterized by their solubility in water, resulting in a clear and colorless or slightly colored solution.

Comment on solubility

Solubility of 4-Hydroxybenzenesulfonic Acid (C6H6O4S)

4-Hydroxybenzenesulfonic acid is a chemical compound known for its favorable solubility properties. Understanding its solubility can help in various applications, ranging from pharmaceuticals to chemical synthesis.

Key Points about Solubility:

  • Highly Soluble in Water: 4-Hydroxybenzenesulfonic acid is readily soluble in water due to its polar sulfonic acid group, which facilitates hydration.
  • Influence of pH: The solubility can be affected by the pH of the solution, where increasing acidity could enhance solubility.
  • Organic Solvents: It has limited solubility in organic solvents, making it less favorable for non-aqueous reactions.
  • Applications: Its water solubility is advantageous for its use in various biological and industrial contexts, including dye production and analytical chemistry.

Overall, the solubility characteristics of 4-hydroxybenzenesulfonic acid reveal its versatility and practicality in diverse chemical processes, embracing both its interactions with water and its limitations in organic environments.

Interesting facts

Interesting Facts about 4-Hydroxybenzenesulfonic Acid

4-Hydroxybenzenesulfonic acid, often referred to as a key player in organic chemistry, is a fascinating compound with a variety of applications. Here are some notable points to consider:

  • Versatile Chemical Structure: This compound features a sulfonic acid group and a hydroxyl group attached to a benzene ring, making it a perfect candidate for various chemical reactions and syntheses.

  • Biological Relevance: 4-Hydroxybenzenesulfonic acid is important in the synthesis of dyes and pharmaceuticals. One of its notable derivatives is its role in the production of azo dyes, which are widely used in textiles.

  • Analytical Applications: In analytical chemistry, this compound is utilized in methods like spectrophotometry. Its ability to form stable complexes with metals makes it suitable for various detection processes.

  • Environmental Consideration: Due to its sulfonic acid group, it displays good water solubility, prompting studies on its environmental fate and impact, particularly regarding wastewater treatment.

  • Research Tool: Its unique properties make it a valuable reagent in biochemical research, often used in studying enzyme activity or as a model in reaction kinetics.

As you delve further into the realm of organic chemistry, 4-hydroxybenzenesulfonic acid stands out as an exemplary compound that bridges the realms of industrial application and scientific research, showcasing the critical intersection of chemistry and technology.

Synonyms
4-Hydroxybenzenesulfonic acid
98-67-9
p-Phenolsulfonic acid
phenolsulfonic acid
4-Phenolsulfonic acid
Sulfocarbolic acid
p-Sulfophenol
p-Hydroxybenzenesulfonic acid
Benzenesulfonic acid, 4-hydroxy-
4-HYDROXYPHENYLSULFONIC ACID
Phenol-4-sulfonic acid
4-Sulfophenol
Benzenesulfonic acid, p-hydroxy-
4-Hydroxybenzenesulphonic acid
Hydroxybenzene-4-sulfonic acid
p-Phenolsulfonate
NSC 227908
4-hydroxybenzene-1-sulfonic acid
para-phenolsulfonic acid
NSC-227908
L74LRO149A
4-Hydroxybenzenesulfonic acid, 65% in Water
DTXSID1046421
CHEBI:32354
Phenolsulfonic acid (JAN)
DTXCID9026421
PHENOLSULFONIC ACID [JAN]
CAS-98-67-9
HSDB 5319
EINECS 202-691-6
BRN 1869034
UNII-L74LRO149A
4-phenolsulfonic-acid
hydrogen sulfite; phenol
4hydroxybenzenesulfonic acid
EC 202-691-6
p-Hydroxyphenylsulfonic acid
SCHEMBL18275
p-hydroxybenzenesulphonic acid
4-11-00-00582 (Beilstein Handbook Reference)
Phenol-4-sulfonic Acid Hydrate
CHEMBL1398657
P-PHENOLSULFONIC ACID [MI]
Tox21_112165
MFCD00007506
NSC227908
P-PHENOLSULFONIC ACID [HSDB]
STL280368
AKOS009159072
Tox21_112165_1
CS-W017509
DB14739
FH75303
P-PHENOLSULFONIC ACID [WHO-DD]
PARA-PHENOLSULFONIC ACID [VANDF]
AS-39421
BP-31158
4-Hydroxybenzenesulfonic Acid (85per cent)
NS00006802
P0104
EN300-36331
D01403
4-Hydroxybenzenesulfonic acid, 65% aqueous solution
4-Hydroxybenzenesulfonic acid;p-Phenolsulfonic acid
Q1534677
BRD-K41024817-325-01-0