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Salicylic acid

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Identification
Molecular formula
C7H6O3
CAS number
69-72-7
IUPAC name
2-hydroxybenzoate
State
State

Salicylic acid is typically found in a solid state at room temperature. Its crystalline nature makes it appear distinct when in pure and solid form.

Melting point (Celsius)
159.00
Melting point (Kelvin)
432.15
Boiling point (Celsius)
211.00
Boiling point (Kelvin)
484.15
General information
Molecular weight
138.12g/mol
Molar mass
138.1210g/mol
Density
1.4430g/cm3
Appearence

Salicylic acid appears as a colorless to white crystalline solid. It may also take the form of a needle-like crystal or a fine white powder. This appearance is typical at room temperature and when devoid of impurities.

Comment on solubility

Solubility of 2-hydroxybenzoate (C7H6O3)

2-hydroxybenzoate, commonly known as salicylate, exhibits interesting solubility characteristics that can affect its applications in various fields. Here are some key points to consider:

  • Solvent Dependence: 2-hydroxybenzoate is relatively soluble in polar solvents such as water and alcohols. Its solubility in water increases significantly with temperature.
  • Hydrogen Bonding: The presence of hydroxyl (-OH) groups in its structure allows for the formation of hydrogen bonds, enhancing its solubility in polar environments.
  • pH Influence: The solubility of 2-hydroxybenzoate is affected by the pH of the solution. In acidic conditions, it may exist predominantly in its neutral form, while in basic conditions, it can ionize to form the salicylate ion, which is more soluble.

To summarize, 2-hydroxybenzoate is generally soluble in water and other polar solvents, with factors such as temperature and pH playing pivotal roles in its solubility behavior. This property is crucial in its utilization across pharmaceutical and industrial applications, highlighting its importance in chemical sciences.

Interesting facts

Exploring 2-Hydroxybenzoate

2-Hydroxybenzoate, often commonly referred to as salicylic acid, is a fascinating compound with a plethora of applications and interesting chemical traits. It’s commonly found in nature and is notable for its role as a precursor in the synthesis of various pharmaceuticals and cosmetics. Here are some engaging facets of 2-hydroxybenzoate:

  • Natural Origins: This compound is naturally occurring in the bark of willow trees. The ancient Greeks and Native Americans used willow bark for its medicinal properties long before the advent of modern pharmacology.
  • Pharmaceutical Significance: 2-Hydroxybenzoate is best known for its role in the production of aspirin. As a salicylate, it provides anti-inflammatory, analgesic, and antipyretic properties that make it invaluable in medicine.
  • Cosmetic Applications: In the cosmetic industry, this compound is used for its exfoliating properties. It helps to clear clogged pores and is often found in products designed for acne treatment.
  • pH Indicator: The compound displays the ability to change color with pH variations in the solution, making it a useful tool for chemists in titrations and other analytical procedures.
  • Antiseptic Properties: With its mild antibacterial properties, 2-hydroxybenzoate can also be found in some topical antiseptic treatments, showcasing its versatility beyond just pain relief.

As noted by chemists, "the applications of 2-hydroxybenzoate extend far beyond its simple structure, demonstrating the intricate relationship between chemistry and its practical applications in everyday life." This compound serves as a remarkable example of how a single chemical can bridge the gap between ancient practices and contemporary science.