2870-32-8 Usage
Description
Direct Yellow 12 is a diazo stilbene dye, characterized by its orange crystalline powder form. It is known for its high tinting strength, which ranges from 100-105%.
Uses
Used in Textile Industry:
Direct Yellow 12 is used as a dye for coloring fabrics in the textile industry. Its high tinting strength allows for the creation of vibrant yellow shades with minimal usage, making it an efficient and cost-effective choice for this application.
Used in Leather Industry:
Direct Yellow 12 is also used as a dye for the leather industry, where it provides good coloring properties and helps in achieving the desired shade of yellow for various leather products.
Used in Paper Industry:
In the paper industry, Direct Yellow 12 is employed as a dye to impart a yellow hue to paper products. Its high tinting strength and ability to produce a consistent color make it a suitable choice for this application.
Used in Cosmetics Industry:
Direct Yellow 12 is utilized as a colorant in the cosmetics industry, particularly for products that require a yellow shade. Its high tinting strength ensures that the desired color is achieved with minimal product usage.
Properties and Applications:
Direct Yellow 12 exhibits various properties that make it suitable for different applications:
Appearance: Yellow
Lighting: 4
Soaping: 3-4
Perspiring: 3-4
Friction (Dry): 4-5
Friction (Wet): 3
Residue on 80 Mesh: 5.0% max
Water Solubility: 1.0% max
Volatilite at 105°C: 1.0% max
Weight Metal Total: 50ppm max
These properties contribute to the dye's effectiveness in various industries, ensuring consistent and long-lasting coloration.
TEST ITEMS
SPECIFICATION
SOAPING
3-4
PERSPIRATING
3-4
FRICTION(DRY)
4-5
FRICTION(WET)
3
RESIDUE ON 80 MESH
5.0% max
WATER SOLUBILE
1.0% max
VOLATITE 105°C
1.0% max
WEIGHT METAL TOTAL
50ppm max
Check Digit Verification of cas no
The CAS Registry Mumber 2870-32-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,8,7 and 0 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 2870-32:
(6*2)+(5*8)+(4*7)+(3*0)+(2*3)+(1*2)=88
88 % 10 = 8
So 2870-32-8 is a valid CAS Registry Number.
InChI:InChI=1/C30H28N4O8S2.2Na/c1-3-41-27-15-11-23(12-16-27)31-33-25-9-7-21(29(19-25)43(35,36)37)5-6-22-8-10-26(20-30(22)44(38,39)40)34-32-24-13-17-28(18-14-24)42-4-2;;/h5-20H,3-4H2,1-2H3,(H,35,36,37)(H,38,39,40);;/q;2*+1/p-2/b6-5-,33-31+,34-32+;;
