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Sudan I

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Identification
Molecular formula
C16H11N2NaO4S
CAS number
842-07-9
IUPAC name
sodium;4-hydroxy-3-[(2-hydroxy-1-naphthyl)azo]benzenesulfonate
State
State

At room temperature, Sudan I is in a solid state. It is usually stored in a dry environment to prevent moisture absorption, which could affect its properties as a dye.

Melting point (Celsius)
199.00
Melting point (Kelvin)
472.00
Boiling point (Celsius)
646.00
Boiling point (Kelvin)
919.00
General information
Molecular weight
350.33g/mol
Molar mass
350.3280g/mol
Density
1.6850g/cm3
Appearence

Sudan I appears as a reddish-brown powder. It is known for its vibrant color and is primarily used as a dye. The powder form is typically fine and dense, with an intense red hue that can vary slightly depending on its concentration and environment.

Comment on solubility

Solubility of Sodium 4-Hydroxy-3-[(2-Hydroxy-1-naphthyl)azo]benzenesulfonate

The solubility characteristics of sodium 4-hydroxy-3-[(2-hydroxy-1-naphthyl)azo]benzenesulfonate can be quite intriguing. This compound is known to be highly soluble in water, which is a crucial feature for various applications, especially in dye chemistry. Here are some important points regarding its solubility:

  • Water Solubility: The presence of the sulfonate group (–SO3Na) enhances its ionic nature, making it readily soluble in aqueous solutions.
  • Temperature Dependence: As with many sodium salts, solubility may increase with temperature, allowing for greater dissolution in hot water.
  • pH Influence: The solubility may also be influenced by the pH of the solution, as acidic or alkaline conditions can alter the ionization of the functional groups.
  • Compatibility with Other Solvents: While it is primarily soluble in water, its solubility in organic solvents may be limited due to its polar structure.

In summary, sodium 4-hydroxy-3-[(2-hydroxy-1-naphthyl)azo]benzenesulfonate exhibits excellent water solubility attributed to its ionic nature, a feature that is critical for its performance in various chemical applications.

Interesting facts

Interesting Facts about Sodium; 4-Hydroxy-3-[(2-Hydroxy-1-Naphthyl)Azo]Benzenesulfonate

Sodium; 4-hydroxy-3-[(2-hydroxy-1-naphthyl)azo]benzenesulfonate, often referred to as a dye or colorant, is widely recognized for its vibrant coloring properties. This compound is a member of the azo dye family, which typically consists of two aromatic amines linked by a diazo group. Here are some intriguing aspects about this compound:

  • Versatile Applications: The compound is primarily used in various industries for textile dyeing, food coloring, and cosmetic formulations. Its ability to impart strong colors makes it a favorite among manufacturers.
  • Environmental Impact: Like many dyes, azo compounds can pose environmental challenges. The breakdown of certain azo dyes can lead to the release of toxic aromatic amines, which necessitates careful assessment and regulation in industrial applications.
  • Structural Complexity: The chemical structure features multiple functional groups, including hydroxyl and sulfonate groups. These contribute to its solubility and reactivity, making the compound suitable for various chemical reactions.
  • Historical Significance: Azo dyes, including this compound, have a rich history dating back to the late 19th century. Their discovery marked a significant breakthrough in synthetic organic chemistry, providing vibrant colors not easily obtained from natural sources.
  • Health Considerations: The use of azo dyes has been a topic of ongoing research concerning health safety due to their potential toxicity. Regulatory bodies continuously evaluate the safety of azo dyes for use in consumer products.

In the world of chemical science, compounds like sodium; 4-hydroxy-3-[(2-hydroxy-1-naphthyl)azo]benzenesulfonate are a testament to the intricate balance between utility and safety. As scientists and researchers continue to innovate, understanding these compounds’ properties and implications remains crucial.

Synonyms
AKOS024319584