37279-47-3

Basic information

• Product Name: Copper, 2,2'-[carbonylbis[imino(1-hydroxy-3-sulfo-6,2-naphthalenediyl)azo]]bis[benzoic acid] complex
• Synonyms: Copper, 2,2'-[carbonylbis[imino(1-hydroxy-3-sulfo-6,2-naphthalenediyl)azo]]bis[benzoic acid] complex;Direct Brown 112;C.I. Direct Brown 112;Direct Bordeaux 4GM;Direct Light Brown 8R;Helion Brown 8RLL;Tertrodirect Light Brown 8R;Triamin Brown 8RLL.
• CAS NO: 37279-47-3
• Molecular Formula: C35H18N6O13S2.2Na.2Cu
• Molecular Weight: 864.27346
• EINECS: 253-440-2
• Product Categories: UVCBs-organometallic
• Mol File: 37279-47-3.mol
• Article Data: 0

Chemical Properties

• Appearance: /
• CAS DataBase Reference: Copper, 2,2'-[carbonylbis[imino(1-hydroxy-3-sulfo-6,2-naphthalenediyl)azo]]bis[benzoic acid] complex(CAS DataBase Reference)
• NIST Chemistry Reference: Copper, 2,2'-[carbonylbis[imino(1-hydroxy-3-sulfo-6,2-naphthalenediyl)azo]]bis[benzoic acid] complex(37279-47-3)
• EPA Substance Registry System: Copper, 2,2'-[carbonylbis[imino(1-hydroxy-3-sulfo-6,2-naphthalenediyl)azo]]bis[benzoic acid] complex(37279-47-3)

Safety Data

• Hazardous Substances Data: 37279-47-3(Hazardous Substances Data)

Usage

Description

Copper, 2,2'-[carbonylbis[imino(1-hydroxy-3-sulfo-6,2-naphthalenediyl)azo]]bis[benzoic acid] complex is a red light brown powder that is soluble in hot water, with a solubility of 15 g/L at 60°C and 20 g/L at 97°C. It is also adequately soluble in ethanol and slightly soluble in strong hydrochloric acid. The complex exhibits a slight change in color when dyed with copper ions and a light yellow color with iron ions. It is primarily used for dyeing and printing various fabrics such as viscose filament, natural silk, rayon, wool, and linen, as well as for leather products.

Uses

Used in Textile Industry:
Copper, 2,2'-[carbonylbis[imino(1-hydroxy-3-sulfo-6,2-naphthalenediyl)azo]]bis[benzoic acid] complex is used as a dye for various fabrics, including viscose filament, natural silk, rayon, wool, and linen, due to its ability to provide vibrant colors and good solubility in hot water.
Used in Leather Industry:
Copper, 2,2'-[carbonylbis[imino(1-hydroxy-3-sulfo-6,2-naphthalenediyl)azo]]bis[benzoic acid] complex is used as a dye for leather products, offering a wide range of color options and good solubility in ethanol.
Standard:
The complex has been tested for various properties, including acid resistance, alkali resistance, light fastness, soaping, water fading, and stain fading. The results are as follows:
Acid Resistance: ISO 3, AATCC 4
Alkali Resistance: ISO 3, AATCC 2
Light Fastness: ISO 7, AATCC 7
Soaping: ISO 3-4, AATCC 3-4
Water Fading: ISO 2-3, AATCC 2
Stain Fading: ISO 3-4, AATCC 3-4
These standards indicate the complex's performance in various conditions, making it suitable for use in the textile and leather industries.

Preparation

2-Aminobenzoic acid (2 Moore) diazo, and N,N’-bis(4-hydroxy-2-sulfonaphthalene-7-yl)urea?coupled with copper sulfate, and complex.

Standard

Acid Resistance

Fading

Stain

ISO

3

AATCC

4

InChI:InChI=1/C35H24N6O13S2.Cu/c42-31-21-11-9-19(13-17(21)15-27(55(49,50)51)29(31)40-38-25-7-3-1-5-23(25)33(44)45)36-35(48)37-20-10-12-22-18(14-20)16-28(56(52,53)54)30(32(22)43)41-39-26-8-4-2-6-24(26)34(46)47;/h1-16,42-43H,(H,44,45)(H,46,47)(H2,36,37,48)(H,49,50,51)(H,52,53,54);/q;+2