49744-39-0

Usage

Uses

Used in Textile Industry:
3,3'-dichloro[1,1'-biphenyl]-4,4'-bis(diazonium) dichloride is used as a dye intermediate for the coloring of fabrics. Its reactivity and ability to form azo dyes make it a valuable component in the creation of vibrant and long-lasting colors in textiles.
Used in Printing Inks Production:
In the printing industry, 3,3'-dichloro[1,1'-biphenyl]-4,4'-bis(diazonium) dichloride is used as a key component in the production of printing inks. Its role in synthesizing azo dyes contributes to the development of inks with a wide range of colors and properties suitable for different printing applications.
Used in Paints Manufacturing:
3,3'-dichloro[1,1'-biphenyl]-4,4'-bis(diazonium) dichloride is also utilized in the manufacturing of paints. As a precursor to azo dyes, it helps in formulating paint products with diverse color options and improved performance characteristics.

Upstream product

• 91-94-1 3,3'-dichlorobenzidine 
• 91-94-1 3,3'-dichlorobenzidine HCl 

Downstream Products

• 97794-07-5 C_.I_. pigment yellow 12 

Relevant academic research and scientific papers

Production process and system for insoluble azo pigments

An insoluble azo pigment is produced by ejecting a diazo solution and a grounding solution continuously into an ejector such that within the ejector, the diazo solution and grounding solution are mixed with each other and are subjected to a coupling reaction. A production system for the insoluble azo pigment includes the following units (1) to (4): (1) a first feed tank (2) for a first fluid selected from the diazo solution or grounding solution, a first flow path (a) for feeding the first fluid to nozzles of an ejector (1), and a pump (d) for feeding the first fluid through the first flow path; (2) the ejector (1) provided with the nozzles, a suction chamber, a diffuser, and a temperature control device (g); (3) a second feed tank (3) for a second fluid, a second flow path (b) for guiding the second fluid into the suction chamber, and a flow control device (e) for controlling a flow rate of the second fluid through the second flowpath (b); and (4) a heat treatment tank (5) for subjecting to heat treatment a suspension of the insoluble azo pigment formed by a reaction between the first fluid and the second fluid, and a third flow path (a′) for guiding the suspension from the diffuser to the heat treatment tank.

Process for the preparation of pigment compositions

Preparation of stabilized pigment compositions, comprising mixing a water-miscible quaternary ammonium compound of formula III wherein R1, R2, R3 and R4 independently of each other stand for C1-C22aklyl, C2-C22alkenyl, benzyl, pyridyl, quinolyl, isoquinolyl or polyoxyalkylenyl, and X? is an anion, a water-immiscible organic solvent and a pigment.