6661-29-6

Usage

Uses

Used in Textile Industry:
Tetrasodium 3,3'-(carbonyldiimino)bis[6-[[1-hydroxy-6-(phenylamino)-3-sulphonato-2-naphthyl]azo]benzoate] is used as a dye for the textile industry due to its vibrant color and solubility properties. Its ability to produce different shades under various pH conditions makes it a versatile choice for coloring fabrics.
Used in Dye Industry:
In the dye industry, tetrasodium 3,3'-(carbonyldiimino)bis[6-[[1-hydroxy-6-(phenylamino)-3-sulphonato-2-naphthyl]azo]benzoate] is utilized as a colorant for various applications, including the production of inks and pigments. Its unique color-changing properties in response to acids and bases make it an interesting choice for creating specialized dyes.
Used in Analytical Chemistry:
Tetrasodium 3,3'-(carbonyldiimino)bis[6-[[1-hydroxy-6-(phenylamino)-3-sulphonato-2-naphthyl]azo]benzoate] can be employed in analytical chemistry as an indicator or reagent due to its distinct color changes when interacting with acids and bases. This characteristic can be useful in titrations and other chemical analyses.
Standard:
tetrasodium 3,3'-(carbonyldiimino)bis[6-[[1-hydroxy-6-(phenylamino)-3-sulphonato-2-naphthyl]azo]benzoate] has been tested for various properties, including acid resistance, alkali resistance, light fastness, soaping, water fading, and stain fading. According to the ISO standards, it has received the following ratings:
Acid Resistance: 3
Alkali Resistance: 5
Light Fastness: 6
Soaping: 4
Water Fading: 5
These ratings indicate that the compound has moderate resistance to acids, good resistance to alkalis, excellent light fastness, and fair performance in soaping and water fading tests.

Preparation

2-Amino-5-nitrobenzoic acid diazo, in alkaline conditions and 4-Hydroxy-7-(phenylamino)naphthalene-2-sulfonic acid coupling, and then will the nitro reduction, and will get the amino nitrogen compounds for light accidentally gasification.

Standard

Acid Resistance

Fading

Stain

ISO

3