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DIRECT YELLOW 29 is a red light yellow dye with properties of palm red powder. It is soluble in water, resulting in a golden brown color with a solubility of 30 g/L at 60°C and 48 g/L at 98°C. In ethanol, it appears as a light lemon yellow color. When treated with strong sulfuric acid, it turns orange red brown, and when diluted, it becomes gold. The dye solution turns orange red brown with strong hydrochloric acid, and when thick sodium hydroxide solution is added, it turns golden brown. The presence of copper and iron ions in the dyeing process causes a slight color change. DIRECT YELLOW 29 has good resistance to chlorine stability and is resistant to reduction on Rongalite and sodium sulfide. It is characterized by its acid resistance, alkali resistance, light fastness, soaping, water fading, and stain fading properties.

6537-66-2

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6537-66-2 Usage

Uses

Used in Textile Industry:
DIRECT YELLOW 29 is used as a dye for cotton and viscose fibers, allowing for direct printing and whitening. It is also used in combination with dispersal dyes in a high-temperature bath for dyeing polyester/cotton blended fabrics.
Used in Leather Industry:
DIRECT YELLOW 29 is used for leather shading, providing a consistent and vibrant color to the leather products.
Used in Paper Industry:
DIRECT YELLOW 29 is utilized for paper shading, enhancing the appearance and quality of the final paper product.

Preparation

use sodium hypochlorite processing C.I. Direct Yellow 59 (C.I. 49000) solution.

Standard

Acid Resistance

Fading

Stain

AATCC

5

Check Digit Verification of cas no

The CAS Registry Mumber 6537-66-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,5,3 and 7 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 6537-66:
(6*6)+(5*5)+(4*3)+(3*7)+(2*6)+(1*6)=112
112 % 10 = 2
So 6537-66-2 is a valid CAS Registry Number.
InChI:InChI=1/C42H26N6O6S6/c1-21-3-15-31-35(37(21)59(49,50)51)57-41(45-31)25-9-17-29-33(19-25)55-39(43-29)23-5-11-27(12-6-23)47-48-28-13-7-24(8-14-28)40-44-30-18-10-26(20-34(30)56-40)42-46-32-16-4-22(2)38(36(32)58-42)60(52,53)54/h3-20H,1-2H3,(H,49,50,51)(H,52,53,54)/b48-47+

6537-66-2SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 12, 2017

Revision Date: Aug 12, 2017

1.Identification

1.1 GHS Product identifier

Product name DIRECT YELLOW 29

1.2 Other means of identification

Product number -
Other names Triamin Yellow RT.

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:6537-66-2 SDS

6537-66-2Upstream product

6537-66-2Downstream Products

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