6408-31-7

Basic information

• Product Name: ACID RED 183
• Synonyms: NEOLAN RED GR;Disodium 5-chloro-3-[[4,5-dihydro-3-methyl-5-oxo-1-(3-sulphophenyl)-1H-pyrazol-4-yl]azo]-2-hydroxybenzene-1-sulphonate;CI 18800;ACID RED 183;chromate(2-),[5-chloro-3-[[4,5-dihydro-3-methyl-5-oxo-1-(3-sulfophenyl)-1h-pyr;Chromate(2-),[5-chloro-3-[[4,5-dihydro-3-methyl-5-oxo-1-(3-sulfophenyl)-1H-pyrazol-4-yl]azo]-2-hydroxybenzenesulfonato(4-)]hydroxy-,disodium;NEOLAN RED GRE;acid red 183 (C.I. 18800)
• CAS NO: 6408-31-7
• Molecular Formula: C16H11ClN4Na2O8S2
• Molecular Weight: 532.84
• EINECS: 229-054-5
• Product Categories: A;Stains and Dyes;Stains&Dyes, A to
• Mol File: 6408-31-7.mol
• Article Data: 0

Chemical Properties

• Boiling Point: 764.18℃[at 101 325 Pa]
• Appearance: /
• Density: 1.84[at 20℃]
• Vapor Pressure: 0Pa at 25℃
• Water Solubility: 903.5μg/L at 25℃
• CAS DataBase Reference: ACID RED 183(CAS DataBase Reference)
• NIST Chemistry Reference: ACID RED 183(6408-31-7)
• EPA Substance Registry System: ACID RED 183(6408-31-7)

Safety Data

• Safety Statements: 24/25
• WGK Germany: 3
• Hazardous Substances Data: 6408-31-7(Hazardous Substances Data)

Usage

Description

ACID RED 183 is a dark rust crystalline powder that exhibits red-yellow light. It is soluble in water, where it appears red, and changes color when exposed to strong sulfuric acid, diluted solutions, and various chemical reactions. This synthetic dye is known for its vibrant color and fastness properties.

Uses

Used in Textile Industry:
ACID RED 183 is used as a dye for the wool dyeing process due to its ability to produce a strong and lasting color. Its light fastness, soaping fastness, and perspiration fastness make it a suitable choice for textiles that require durability and resistance to fading.
Used in Leather Industry:
ACID RED 183 is also used in the leather coloring process, where its strong color and fastness properties are essential for creating visually appealing and long-lasting leather products. The dye's resistance to oxygen bleaching and fading in seawater makes it an ideal choice for leather items that may be exposed to various environmental conditions.
Standard:
The fastness properties of ACID RED 183 are measured according to ISO and AATCC standards, which provide a benchmark for the dye's performance in various conditions. The ISO standard rates the dye's light fastness at 7, soaping at 3-4, perspiration fastness at 4, and fastness to seawater at 2. The AATCC standard rates the dye's fading at 6-7, staining at 2, and fastness to oxygen bleaching at 5.

Preparation

3-Amino-5-chloro-2-hydroxybenzenesulfonic acid diazo, and 1-(3-Sulfophenyl)-3-methyl-5-pyrazolone coupling, and then in water solution and formic acid chromium heating, in 125 ° C keep 3 hours, make the generation of the chrome complex.

Flammability and Explosibility

Notclassified

Standard

Light Fastness

Fading

Stain

ISO

7

AATCC

6-7

InChI:InChI=1/C16H13ClN4O8S2/c1-8-14(19-18-12-5-9(17)6-13(15(12)22)31(27,28)29)16(23)21(20-8)10-3-2-4-11(7-10)30(24,25)26/h2-7,19-20H,1H3,(H,24,25,26)(H,27,28,29)/p-2