6370-15-6

Basic information

• Product Name: sodium hydroxy[2-hydroxy-3-[(2-hydroxy-1-naphthyl)azo]-5-nitrobenzenesulphonato(3-)]chromate(1-)
• Synonyms: sodium hydroxy[2-hydroxy-3-[(2-hydroxy-1-naphthyl)azo]-5-nitrobenzenesulphonato(3-)]chromate(1-);Acid red 184 (C.I. 15685);Acid Violet Brown B;C.I. 15685;Kemacid Red 184;Navitan Violet Brown B;Neolan Violet Brown B;Oxanal Fast Violet RB
• CAS NO: 6370-15-6
• Molecular Formula: C18H15CrNNaO8S *
• Molecular Weight: 480.36447
• EINECS: 228-876-1
• Mol File: 6370-15-6.mol
• Article Data: 0

Chemical Properties

• Appearance: /
• CAS DataBase Reference: sodium hydroxy[2-hydroxy-3-[(2-hydroxy-1-naphthyl)azo]-5-nitrobenzenesulphonato(3-)]chromate(1-)(CAS DataBase Reference)
• NIST Chemistry Reference: sodium hydroxy[2-hydroxy-3-[(2-hydroxy-1-naphthyl)azo]-5-nitrobenzenesulphonato(3-)]chromate(1-)(6370-15-6)
• EPA Substance Registry System: sodium hydroxy[2-hydroxy-3-[(2-hydroxy-1-naphthyl)azo]-5-nitrobenzenesulphonato(3-)]chromate(1-)(6370-15-6)

Safety Data

• Hazardous Substances Data: 6370-15-6(Hazardous Substances Data)

Usage

Description

Sodium hydroxy[2-hydroxy-3-[(2-hydroxy-1-naphthyl)azo]-5-nitrobenzenesulphonato(3-)]chromate(1-) is a red, purplish-red powder that is soluble in water, resulting in a purplish-red color. It is a strong sulfuric acid dye that turns purple when applied and gradually precipitates, turning the diluted solution pale red-purple. sodium hydroxy[2-hydroxy-3-[(2-hydroxy-1-naphthyl)azo]-5-nitrobenzenesulphonato(3-)]chromate(1-) is known for its good levelness and whiteness. It is sensitive to the presence of copper and iron ions, which can cause a color change to blue and light blue, respectively.

Uses

Used in Textile Industry:
Sodium hydroxy[2-hydroxy-3-[(2-hydroxy-1-naphthyl)azo]-5-nitrobenzenesulphonato(3-)]chromate(1-) is used as a dye for wool, polyamide fiber, silk, and their blended fabrics. It is valued for its ability to produce a vibrant color that is fast to light, soaping, perspiration, oxygen bleaching, and seawater, making it suitable for various applications in the textile industry.
Used in Leather Industry:
sodium hydroxy[2-hydroxy-3-[(2-hydroxy-1-naphthyl)azo]-5-nitrobenzenesulphonato(3-)]chromate(1-) is also used in the leather industry for shading, providing a consistent and attractive color to leather products.
Used in Organic Pigments:
Sodium hydroxy[2-hydroxy-3-[(2-hydroxy-1-naphthyl)azo]-5-nitrobenzenesulphonato(3-)]chromate(1-) is utilized in the production of organic pigments due to its strong coloring properties and resistance to various environmental factors.
Standard:
sodium hydroxy[2-hydroxy-3-[(2-hydroxy-1-naphthyl)azo]-5-nitrobenzenesulphonato(3-)]chromate(1-) meets various industry standards for fastness, including ISO and AATCC ratings, ensuring its reliability and performance in different applications.

Preparation

3-Amino-2-hydroxy-5-nitrobenzenesulfonic acid diazo, and Naphthalen-2-ol coupling, and then in aqueous solution together with formic acid chromium heating, in 130 ° C keep 0.5 ~ 1.5 hours to form chromium complex.

Standard

Light Fastness

Fading

Stain

ISO

5-6

AATCC

4-5