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Acid black 1

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Identification
Molecular formula
C22H14N6Na2O9S2
CAS number
1064-48-8
IUPAC name
hydroxy-[4-hydroxy-3-[[1-hydroxy-3-sulfo-7-(sulfomethylamino)-2-naphthyl]azo]-5-sulfo-phenyl]-oxo-ammonium
State
State

Acid Black 1 is typically a solid compound 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
616.50g/mol
Molar mass
616.4950g/mol
Density
1.6000g/cm3
Appearence

Acid Black 1 is commonly a dark black powder. It may appear as blue-black crystalline powder forms.

Comment on solubility

Solubility Characteristics

The compound hydroxy-[4-hydroxy-3-[[1-hydroxy-3-sulfo-7-(sulfomethylamino)-2-naphthyl]azo]-5-sulfo-phenyl]-oxo-ammonium presents intriguing solubility properties.

Solubility Insights

Here are some important points regarding its solubility:

  • Water Solubility: As a sulfonated compound, it is likely to exhibit good solubility in water due to the presence of multiple sulfonic acid groups that enhance ionic interactions with water molecules.
  • Solvent Behavior: This compound may have varied solubility in organic solvents, often being insoluble or poorly soluble in non-polar organic solvents, which contrasts with its high affinity for polar solvents.
  • pH Dependence: The solubility can be influenced by the pH of the solution, where alkaline conditions may further increase its solubility due to deprotonation of acidic functional groups.
  • Temperature Effects: Higher temperatures could lead to an increase in solubility, although the specific temperature range for optimal solubility would need to be determined experimentally.

In summary, the solubility of this complex compound is primarily influenced by its ionic nature and functional groups, rendering it highly soluble in aqueous environments, but substantially less so in non-polar organic solvents. As is often the case in chemistry, understanding these factors is crucial for practical applications and further research.

Interesting facts

Interesting Facts about Hydroxy-[4-Hydroxy-3-[[1-Hydroxy-3-Sulfo-7-(Sulfomethylamino)-2-Naphthyl]Azo]-5-Sulfo-Phenyl]-Oxo-Ammonium

Hydroxy-[4-Hydroxy-3-[[1-Hydroxy-3-Sulfo-7-(Sulfomethylamino)-2-Naphthyl]Azo]-5-Sulfo-Phenyl]-Oxo-Ammonium is a fascinating compound that falls under the category of azo dyes, known for their vivid colors and wide application. Here are some captivating aspects of this compound:

  • Structure Complexity: This compound consists of multiple functional groups, including hydroxyl and sulfonate groups. These contribute to its reactivity and solubility in water, making it ideal for various applications.
  • Application in Textile Industry: Azo dyes are predominantly used in dyeing textiles. The bright hues achieved with compounds like this can create striking colors in fabrics.
  • Biological Impact: Some studies have indicated that azo compounds may have toxicological effects, and this specific compound's biological activity is of interest in pharmacological research.
  • Reactivity: The presence of an azo link (–N=N–) in its structure underscores its reactivity, allowing chemists to modify its properties for desired functions.
  • Historical Significance: Azo dyes were among the first synthetic dyes developed in the 19th century, revolutionizing the dye industry and leading to the emergence of vibrant colored textiles.

As a remarkable example of organic synthesis, Hydroxy-[4-Hydroxy-3-[[1-Hydroxy-3-Sulfo-7-(Sulfomethylamino)-2-Naphthyl]Azo]-5-Sulfo-Phenyl]-Oxo-Ammonium serves not only practical roles in daily life but also acts as a subject of extensive study in chemical research.