642-62-6 Usage
Description
ACID YELLOW 17 is a brilliant yellow dye that appears as a yellow powder. It is soluble in water, resulting in a greenish-yellow hue, and slightly soluble in ethanol and acetone. However, it is insoluble in other organic solvents. The dye exhibits various color changes when exposed to different chemicals, such as greenish-yellow in strong sulfuric acid, reddish-yellow in nitric acid, and almost colorless when mixed with sodium hydroxide solution. Its water solution also causes discoloration when combined with hydrochloric acid and bleaching with a carved white piece. The solution turns reddish-purple upon oxidation in the air. ACID YELLOW 17 has good discharge properties and imparts a slightly red and dark color and luster to dyed copper and iron ions.
Uses
Used in Textile Industry:
ACID YELLOW 17 is used as a dye for wool in strong acid dye baths, silk dyeing in acetic acid baths, and polyamide fiber dyeing in formic acid dye baths. It provides good color and luster to the dyed fabrics.
Used in Printing Industry:
ACID YELLOW 17 can be directly applied on wool fabric for printing purposes.
Used in Leather Industry:
ACID YELLOW 17 is used for dyeing leather, providing a vibrant color and enhancing the appearance of the leather products.
Used in Paint Industry:
ACID YELLOW 17 can be incorporated into paint formulations to provide a bright yellow color for various applications.
Used in Paper Industry:
ACID YELLOW 17 can be used for shading on paper surfaces, offering a consistent and even color distribution.
Used in Cosmetics Industry:
ACID YELLOW 17 can be used as a colorant in cosmetics, providing a bright and attractive color to various cosmetic products.
Used in Medicine Industry:
ACID YELLOW 17 can be utilized in the pharmaceutical industry for shading purposes, contributing to the appearance and identification of various medicinal products.
Standard:
ACID YELLOW 17 meets the following standards for various properties:
Light Fastness: ISO 7, AATCC 7
Soaping: ISO 2, AATCC 2
Perspiration Fastness: ISO 5, AATCC 1
Oxygen Bleaching: ISO 4-5, AATCC 1
Fastness to Seawater: ISO 1, AATCC 1
Fading: ISO 5, AATCC 3-4
Stain: ISO 4-5, AATCC 3-4
Preparation
4-Aminobenzenesulfonic acid diazo, and 2,5-Bichloro-4-(3-methyl-5-oxo-4,5-dihydropyrazol-1-yl)benzenesulfonic acid coupling.
Standard
Light Fastness
Fading
Stain
ISO
7
Check Digit Verification of cas no
The CAS Registry Mumber 642-62-6 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 6,4 and 2 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 642-62:
(5*6)+(4*4)+(3*2)+(2*6)+(1*2)=66
66 % 10 = 6
So 642-62-6 is a valid CAS Registry Number.
