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Tartrazine

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Identification
Molecular formula
C16H9N4NaO9S2
CAS number
1934-21-0
IUPAC name
sodium;4-[3-methyl-4-[4-methyl-3-(phenylsulfamoyl)phenyl]azo-5-oxo-4H-pyrazol-1-yl]benzenesulfonate
State
State

Tartrazine is typically found as a solid powder at room temperature. It must be handled in a dry environment to prevent caking due to moisture absorption.

Melting point (Celsius)
350.00
Melting point (Kelvin)
623.00
Boiling point (Celsius)
0.00
Boiling point (Kelvin)
0.00
General information
Molecular weight
534.37g/mol
Molar mass
534.3690g/mol
Density
0.9915g/cm3
Appearence

Tartrazine is a synthetic lemon yellow azo dye primarily used as a food coloring. It is a fine powder that is soluble in water and has a bright yellow appearance. It is also known for its ability to be dissolved in glycerol, propylene glycol, and ethylene glycol, giving it versatility in different formulations.

Comment on solubility

Solubility of Sodium 4-[3-methyl-4-[4-methyl-3-(phenylsulfamoyl)phenyl]azo-5-oxo-4H-pyrazol-1-yl]benzenesulfonate

The solubility of Sodium 4-[3-methyl-4-[4-methyl-3-(phenylsulfamoyl)phenyl]azo-5-oxo-4H-pyrazol-1-yl]benzenesulfonate can be influenced by several factors. Here are some key points to consider:

  • Polarity: This compound contains both hydrophilic and hydrophobic regions, which suggests that it may have moderate solubility in polar solvents, such as water.
  • Ionic Nature: As a sodium salt, this compound is likely to dissolve well in water due to the presence of ionic bonds that can dissociate in solution.
  • Temperature Influence: Generally, an increase in temperature can enhance solubility for many compounds. Thus, heating the solution might facilitate a better dissolution process.
  • pH Sensitivity: The solubility may vary with the pH of the solution, particularly due to the sulfonate group which can affect the ionization.

In conclusion, while specific solubility data may not be readily available, it can be inferred that sodium salts like this compound are typically soluble in water due to their ionic characteristics. Testing in varying conditions—such as different temperatures or pH levels—could provide more insights into its solubility profile.

Interesting facts

Interesting Facts about Sodium 4-[3-Methyl-4-[4-Methyl-3-(Phenylsulfamoyl)Phenyl]Azo-5-Oxo-4H-Pyrazol-1-Yl]Benzenesulfonate

Sodium 4-[3-methyl-4-[4-methyl-3-(phenylsulfamoyl)phenyl]azo-5-oxo-4H-pyrazol-1-yl]benzenesulfonate is a fascinating compound with diverse applications and intriguing properties. This compound is part of the class of azo dyes, renowned for their vibrant colors and stability. Here are some interesting aspects of this compound:

  • Applications in Dyes: The azo group (-N=N-) is commonly used in dye chemistry, making this compound a significant player in various dyeing processes, especially in textiles and food products.
  • Biological Activity: Compounds bearing the azo functional group have been studied for their potential biological activities, including antibacterial and anticancer properties. Research on sulfamoyl derivatives suggests they may have therapeutic applications.
  • Dual Functionality: This compound showcases a dual functionality—that is, it serves both as a dye and a chemical intermediate; its reactivity allows it to participate in various chemical reactions, producing new compounds with potentially useful properties.
  • Sustainability in Chemistry: The exploration of azo compounds like this one highlights the need for sustainable practices in synthetic chemistry, as researchers seek less toxic and more environmentally friendly alternatives.

In conclusion, Sodium 4-[3-methyl-4-[4-methyl-3-(phenylsulfamoyl)phenyl]azo-5-oxo-4H-pyrazol-1-yl]benzenesulfonate exemplifies the intersection of chemistry and practical applications. As a chemistry student, one might find it fascinating to delve into the synthesis and application of such compounds, gaining insights into both their theoretical and practical implications in modern science.