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Orange G

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Identification
Molecular formula
C16H10N2Na2O7S2
CAS number
1936-15-8
IUPAC name
4-hydroxy-3-[4-[4-[(2-hydroxy-1-naphthyl)azo]-2-methyl-phenyl]-3-methyl-phenyl]azo-naphthalene-2,7-disulfonic acid
State
State

Orange G is typically used in its powder form which is then dissolved in water or another solvent for use in staining techniques.

Melting point (Celsius)
300.00
Melting point (Kelvin)
573.00
Boiling point (Celsius)
0.00
Boiling point (Kelvin)
0.00
General information
Molecular weight
452.37g/mol
Molar mass
452.3730g/mol
Density
1.6104g/cm3
Appearence

Orange G appears as a bright orange powder. As a dye, it is a member of the azo dyes and is used in various biological staining applications.

Comment on solubility

Solubility of 4-hydroxy-3-[4-[4-[(2-hydroxy-1-naphthyl)azo]-2-methyl-phenyl]-3-methyl-phenyl]azo-naphthalene-2,7-disulfonic acid

The solubility of 4-hydroxy-3-[4-[4-[(2-hydroxy-1-naphthyl)azo]-2-methyl-phenyl]-3-methyl-phenyl]azo-naphthalene-2,7-disulfonic acid can be characterized as follows:

  • Aqueous Solubility: This compound is typically soluble in water due to the presence of multiple sulfonic acid groups. These groups enhance its ability to interact with water molecules, allowing it to dissolve readily.
  • Organic Solvents: Its solubility in organic solvents can vary. Polar solvents may facilitate solubility, while non-polar solvents may not dissolve the compound effectively.
  • Temperature Influence: Increasing temperature can sometimes improve solubility; however, the specific behavior of this compound will depend on its precise structure and the surrounding environment.
  • pH Sensitivity: Being an acid, its solubility can be affected by pH levels, which alter the ionization state of the sulfonic acid groups and impact its overall solubility in various solutions.

In summary, the solubility of this azo compound is influenced by its ionic nature, making it more soluble in aqueous solutions and sensitive to changes in both temperature and pH. Thus, for practical applications, it is essential to consider these factors to optimize its usage.

Interesting facts

Interesting Facts about 4-hydroxy-3-[4-[4-[(2-hydroxy-1-naphthyl)azo]-2-methyl-phenyl]-3-methyl-phenyl]azo-naphthalene-2,7-disulfonic acid

This compound, often referred to as a complex azo dye, belongs to a class of chemicals known for their vibrant colors and wide applications in various industries. The structure of this compound is intricate, showcasing multiple functional groups that contribute to its unique properties.

Key Features of the Compound:

  • Azo Group Influence: The presence of the azo (-N=N-) functional group is significant as it allows for the formation of vivid colors. Azo compounds are widely used in dyes because of their stability and intense hues.
  • Applications: This compound is primarily used in the textile industry for dyeing fabrics. Its excellent color-fastness and ability to produce a range of shades make it a preferred choice.
  • Environmental Considerations: As with many azo dyes, there is ongoing research into their environmental impact and toxicity. The breakdown products of some azo compounds can be harmful, prompting studies into safer alternatives and methods for mitigation.
  • Versatility: Beyond textiles, this compound can also find applications in other fields such as inks, plastics, and food coloring, reflecting the versatility of azo dyes.

Despite its complex structure, the key to its utility lies in the balance of chemical stability and vibrancy, making this compound a fascinating subject of study. Researchers continue to explore not only its applications but also innovative ways to reduce any ecological impact while maximizing its effectiveness in various domains.

As chemists, understanding the intricacies of such compounds allows us to harness their full potential while maintaining a responsible approach towards sustainability.

Synonyms
DTXSID20863255
4-Hydroxy-3-({4'-[(2-hydroxynaphthalen-1-yl)diazenyl]-2,2'-dimethyl[1,1'-biphenyl]-4-yl}diazenyl)naphthalene-2,7-disulfonic acid