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C.I. Acid Black 1

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Identification
Molecular formula
C22H14CrN6Na2O9S2
CAS number
1064-48-8
IUPAC name
chromic;disodium;3-oxido-4-[(1-oxido-8-sulfonato-2-naphthyl)azo]naphthalene-1-sulfonate;hydroxide
State
State

At room temperature, C.I. Acid Black 1 is typically in a solid state. As a powdered dye, it is widely used in the textile and paper industries.

Melting point (Celsius)
0.00
Melting point (Kelvin)
0.00
Boiling point (Celsius)
0.00
Boiling point (Kelvin)
0.00
General information
Molecular weight
586.45g/mol
Molar mass
586.4520g/mol
Density
0.9000g/cm3
Appearence

C.I. Acid Black 1 appears as a black to dark brown powder. It is an organic compound that is typically used as a dye, and it is soluble in water, forming a darkly colored solution.

Comment on solubility

Solubility of Chromic Disodium 3-Oxido-4-[(1-Oxido-8-Sulfonato-2-Naphthyl)Azo]Naphthalene-1-Sulfonate Hydroxide

The solubility characteristics of the complex compound chromic disodium 3-oxido-4-[(1-oxido-8-sulfonato-2-naphthyl)azo]naphthalene-1-sulfonate hydroxide can be quite intricate due to its multifaceted structure. Understanding its solubility involves recognizing several key factors:

  • Nature of the Compound: As a sulfonated azo dye, its structural components influence how it interacts with solvents, particularly water.
  • Polarity: The presence of sulfonate groups (-SO3H) tends to enhance solubility in polar solvents, especially water.
  • pH Dependence: Solubility may vary significantly with changes in pH. For hydroxides, solubility can be affected by the ionization of the -OH group.
  • Temperature: Increasing temperature often results in enhanced solubility for many compounds, and this compound may exhibit a similar trend.

In conclusion, while chromic disodium 3-oxido-4-[(1-oxido-8-sulfonato-2-naphthyl)azo]naphthalene-1-sulfonate hydroxide is expected to have reasonable solubility in polar solvents, its precise solubility behavior is dependent on a combination of structural attributes, pH levels, and temperature conditions. As with many chemical compounds, context is crucial to understanding its solubility properties.

Interesting facts

Interesting Facts about Chromic Disodium 3-Oxido-4-[(1-oxido-8-sulfonato-2-naphthyl)azo]naphthalene-1-sulfonate Hydroxide

This unique compound, often referred to in the realm of dyes and pigments, is significant for its remarkable properties and applications. Here are some fascinating insights:

  • Versatile Applications: This compound is predominantly utilized in the textile industry for dyeing and printing fabrics, providing vibrant colors that can withstand various environmental factors.
  • Complex Structure: Its intricate structure includes a naphthalene core that affords it unique chemical characteristics, particularly in terms of light absorption and reactivity.
  • Environmental Considerations: A compound such as this raises interest due to its potential environmental impact, leading to ongoing research aimed at developing more sustainable and less harmful alternatives in dyeing processes.
  • Chemical Reactivity: The hydroxide group in this compound plays a crucial role in its reactivity, making it a subject of interest for chemists studying acid-base equilibria and related phenomena.
  • Historical Significance: Dyes derived from azo compounds have been historically significant, marking notable advancements in chemistry dating back to the 19th century when synthetic dyes were first made.

Overall, Chromic Disodium 3-Oxido-4-[(1-oxido-8-sulfonato-2-naphthyl)azo]naphthalene-1-sulfonate Hydroxide serves as an excellent example of how complex organic compounds can offer both aesthetic and functional benefits in various industries.

Synonyms
C.I. Acid Blue 158, disodium salt
Acid blue 158
UP9T9CMP6N
disodium;chromium(3+);3-oxido-4-[(1-oxido-8-sulfonatonaphthalen-2-yl)diazenyl]naphthalene-1-sulfonate;hydroxide
6370-08-7
UNII-UP9T9CMP6N
EINECS 228-875-6
C.I. Acid Blue 158-14880
Chromate(2-), hydroxy(3-(hydroxy-kappaO)-4-((1-(hydroxy-kappaO)-8-sulfo-2-naphthalenyl)azo-kappaN1)-1-naphthalenesulfonato(4-))-, disodium, (T-4)-