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Metanilic Acid

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Identification
Molecular formula
C6H8N2O4S
CAS number
121-47-1
IUPAC name
benzene-1,3-diamine;sulfuric acid
State
State

Metanilic acid is a solid at room temperature.

Melting point (Celsius)
228.00
Melting point (Kelvin)
501.15
Boiling point (Celsius)
245.10
Boiling point (Kelvin)
518.25
General information
Molecular weight
173.19g/mol
Molar mass
173.1910g/mol
Density
1.4776g/cm3
Appearence

Metanilic acid typically appears as white crystalline solid. It is often found in its pure form as a powder. The compound is known for its stability and ease of handling.

Comment on solubility

Solubility of Benzene-1,3-diamine in Sulfuric Acid

Benzene-1,3-diamine, also known as meta-phenylenediamine, exhibits distinct solubility characteristics when introduced to sulfuric acid. The interaction between these two compounds can be summarized by the following points:

  • Solvent Properties: Sulfuric acid is a highly polar protic solvent, which enhances the solubility of organic amines like benzene-1,3-diamine.
  • Hydrogen Bonding: The presence of amino (-NH2) groups in benzene-1,3-diamine facilitates strong hydrogen bonding with sulfuric acid, ensuring greater solubility.
  • Concentration Dependence: The solubility of benzene-1,3-diamine increases with the concentration of sulfuric acid, leading to the formation of specific ionic forms in solution.
  • Temperature Effects: Raising the temperature generally enhances solubility, making boiling sulfuric acid a more effective solvent for this compound.

In conclusion, benzene-1,3-diamine demonstrates excellent solubility in sulfuric acid due to the synergistic effects of polarity, hydrogen bonding, and concentration. This property is particularly useful in various chemical applications where compounds need to interact effectively in solution.

Interesting facts

Interesting Facts about Benzene-1,3-Diamine in Sulfuric Acid

Benzene-1,3-diamine, also known as m-phenylenediamine, is a fascinating organic compound with a plethora of applications in various fields, particularly in the synthesis of dyes and polymers. When combined with sulfuric acid, this compound showcases interesting reactivity and properties.

Key Highlights of Benzene-1,3-Diamine:

  • Building Block for Dyes: One of the primary uses of benzene-1,3-diamine is as a precursor in the manufacturing of azo and anthraquinone dyes, which are essential in textiles and coloring applications.
  • Catalytic Role: In organic synthesis, benzene-1,3-diamine often acts as a catalyst or intermediate, facilitating chemical reactions that lead to the formation of more complex molecules.
  • Polymer Chemistry: It plays a crucial role in the synthesis of polyamide resins, contributing to the production of high-performance plastics and fibers.
  • Pharmaceutical Applications: The compound has been investigated for its potential therapeutic properties, particularly in the field of drug discovery.

When benzene-1,3-diamine reacts with sulfuric acid, the acute acidic environment can lead to protonation of the amine groups. This transformation can significantly alter its reactivity, making it susceptible to electrophilic substitution reactions. The resulting products can lead to a variety of functional modifications that expand its utility in synthetic organic chemistry.

Safety and Handling Precautions:

  • Corrosive Nature: Sulfuric acid is highly corrosive, and careful handling is imperative to prevent chemical burns.
  • Protective Equipment: Always use gloves, goggles, and a lab coat when working with these chemicals to ensure safety.

In conclusion, the unique characteristics and reactivity of benzene-1,3-diamine, especially in the presence of sulfuric acid, make it a compound of high interest in the realms of chemistry and materials science. Its versatility highlights the intricate connections between simple organic compounds and complex industrial applications.

Synonyms
541-70-8
m-Phenylenediamine sulfate
1,3-Benzenediamine, sulfate (1:1)
UNII-O7CFS23KOR
1,3-Benzenediamine, sulfate
COLOREX MPDS
RODOL MPDS
HSDB 6245
1,3-BENZENEDIAMINE SULFATE
m-Phenylenediamine, sulfate (1:1)
EINECS 208-791-6
DTXSID7060251
PHENYLENEDIAMINE SULFATE, M-
1,3-BENZENEDIAMINE SULFATE [HSDB]
mPhenylenediamine sulfate
1,3Phenylenediamine sulfate
Benzene1,3diammonium sulphate
DTXCID7041598
M-PHENYLENEDIAMINE SULFATE [INCI]
208-791-6
1,3-Phenylenediamine sulfate
Benzene-1,3-diamine sulfate
1,3-Diaminobenzene Sulfate
benzene-1,3-diamine;sulfuric acid
benzene-1,3-diamine; sulfuric acid
Benzene-1,3-diammonium sulphate
O7CFS23KOR
25723-55-1
SCHEMBL1879344
LDXYDHGRKFMULJ-UHFFFAOYSA-N
MFCD00060223
AKOS015897353
AS-12641
DB-052503
DB-352161
P0174
H10767
A830007
Q27285433
F0001-1422
benzene-1,3-diamine; sulfuric acid;m-Phenylenediamine sulfate