Understanding Azo Dyes: The Chemistry of Eriochrome Black T
Azo dyes represent one of the largest and most versatile classes of synthetic organic colorants, and Eriochrome Black T (CAS 1787-61-7) is a prominent example within this group. Chemically identified as 1-Naphthalenesulfonicacid, 3-hydroxy-4-[2-(1-hydroxy-2-naphthalenyl)diazenyl]-7-nitro-, sodium salt, this compound's distinct azo (-N=N-) linkage is responsible for its deep color. NINGBO INNO PHARMCHEM CO.,LTD. provides access to this important azo dye, catering to industries that need to buy quality colorants.
The synthesis of azo dyes like Eriochrome Black T typically involves a diazotization reaction followed by a coupling reaction. While the precise industrial synthesis of this specific compound involves complex organic chemistry, its structure, featuring two naphthalene rings linked by an azo group and incorporating nitro and sulfonic acid functionalities, is key to its properties. These structural elements contribute to its deep black color and its utility as a dye and a chelating agent.
As a dye, Eriochrome Black T is widely used in the textile industry for coloring fabrics such as wool, silk, and nylon, as well as in leather dyeing. Its performance as an acid dye ensures good affinity for protein fibers and good wet fastness properties. Manufacturers looking to buy dyes for these applications will find Eriochrome Black T to be a reliable choice. NINGBO INNO PHARMCHEM CO.,LTD. ensures that the dye supplied is of high purity, allowing for consistent color results and application performance.
Beyond its role as a colorant, Eriochrome Black T is also recognized for its function as a metallochromic indicator in analytical chemistry. It forms colored complexes with various metal ions, making it useful for complexometric titrations. This property highlights the compound's ability to interact with different chemical species, a trait common among many azo dyes.
For sectors that require precise chemical compounds, understanding the nature of azo dyes like Eriochrome Black T is essential. Whether used for its coloring properties or as a chemical intermediate, its quality is paramount. NINGBO INNO PHARMCHEM CO.,LTD. is a trusted partner for those seeking to buy this compound, offering the assurance of high purity and reliable supply for both pharmaceutical and industrial applications.
The synthesis of azo dyes like Eriochrome Black T typically involves a diazotization reaction followed by a coupling reaction. While the precise industrial synthesis of this specific compound involves complex organic chemistry, its structure, featuring two naphthalene rings linked by an azo group and incorporating nitro and sulfonic acid functionalities, is key to its properties. These structural elements contribute to its deep black color and its utility as a dye and a chelating agent.
As a dye, Eriochrome Black T is widely used in the textile industry for coloring fabrics such as wool, silk, and nylon, as well as in leather dyeing. Its performance as an acid dye ensures good affinity for protein fibers and good wet fastness properties. Manufacturers looking to buy dyes for these applications will find Eriochrome Black T to be a reliable choice. NINGBO INNO PHARMCHEM CO.,LTD. ensures that the dye supplied is of high purity, allowing for consistent color results and application performance.
Beyond its role as a colorant, Eriochrome Black T is also recognized for its function as a metallochromic indicator in analytical chemistry. It forms colored complexes with various metal ions, making it useful for complexometric titrations. This property highlights the compound's ability to interact with different chemical species, a trait common among many azo dyes.
For sectors that require precise chemical compounds, understanding the nature of azo dyes like Eriochrome Black T is essential. Whether used for its coloring properties or as a chemical intermediate, its quality is paramount. NINGBO INNO PHARMCHEM CO.,LTD. is a trusted partner for those seeking to buy this compound, offering the assurance of high purity and reliable supply for both pharmaceutical and industrial applications.
Perspectives & Insights
Nano Explorer 01
“Whether used for its coloring properties or as a chemical intermediate, its quality is paramount.”
Data Catalyst One
“is a trusted partner for those seeking to buy this compound, offering the assurance of high purity and reliable supply for both pharmaceutical and industrial applications.”
Chem Thinker Labs
“Azo dyes represent one of the largest and most versatile classes of synthetic organic colorants, and Eriochrome Black T (CAS 1787-61-7) is a prominent example within this group.”