3214-47-9 Usage
Description
Direct Yellow 50 is a red light yellow dye that is soluble in water, producing a golden brown color with a solubility of 60 g/L at 60°C and 80 g/L at 97°C. It is slightly soluble in ethanol and insoluble in other organic solvents. The dye exhibits various color changes when interacting with different acids and bases, and it is used for dyeing cellulose fibers, particularly at 80°C for maximum affinity. Direct Yellow 50 is a neutral, weak acid dye that is not sensitive to the presence of copper and iron ions, which do not affect its color.
Uses
Used in Textile Industry:
Direct Yellow 50 is used as a dye for cellulose fibers, such as cotton and viscose, as well as silk dyeing and printing. It is suitable for both direct printing and discharge printing, providing excellent colorfastness and resistance to light, acid, alkali, soaping, water, and fading.
Used in Blended Fabric Industry:
Direct Yellow 50 can be used in high-temperature dye baths for blended fabrics made of polyester and cotton, allowing for uniform and vibrant coloration.
Used in Nylon, Leather, Paper, and Electrochemical Aluminum Coloring:
The dye is also applicable for coloring nylon, leather, paper, and electrochemical aluminum, offering a wide range of uses across various industries.
Standard:
The performance standards for Direct Yellow 50 in terms of acid resistance, alkali resistance, light fastness, soaping, water fading, and stain fading are as follows:
Acid Resistance: ISO 3-4, AATCC 5
Alkali Resistance: ISO 3, AATCC 3
Light Fastness: ISO 6, AATCC 5
Soaping: ISO 2-3, AATCC 2-3
Water Fading: ISO 2, AATCC 1-3
Stain Fading: Not provided
These standards indicate the dye's performance and suitability for various applications, ensuring consistent and reliable results in the textile, blended fabric, and other industries.
Preparation
3-Aminonaphthalene-1,5-disulfonic acid diazo, and a coupling m-Toluidine, then the light gasification.
Flammability and Explosibility
Nonflammable
Standard
Acid Resistance
Fading
Stain
ISO
3-4
AATCC
5
Check Digit Verification of cas no
The CAS Registry Mumber 3214-47-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,2,1 and 4 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 3214-47:
(6*3)+(5*2)+(4*1)+(3*4)+(2*4)+(1*7)=59
59 % 10 = 9
So 3214-47-9 is a valid CAS Registry Number.
InChI:InChI=1/C35H28N6O13S4.4Na/c1-19-13-21(9-11-29(19)40-38-23-15-27-25(33(17-23)57(49,50)51)5-3-7-31(27)55(43,44)45)36-35(42)37-22-10-12-30(20(2)14-22)41-39-24-16-28-26(34(18-24)58(52,53)54)6-4-8-32(28)56(46,47)48;;;;/h3-18H,1-2H3,(H2,36,37,42)(H,43,44,45)(H,46,47,48)(H,49,50,51)(H,52,53,54);;;;/q;4*+1/p-4
