12627-77-9 Usage
Description
Azo Yellow is a red light yellow dye that is soluble in water for a lemon yellow color and in ethanol for a yellow color. It is almost insoluble in benzene and ethyl ether. The dye solution exhibits color changes in the presence of strong acids and bases, and forms precipitates when reacted with certain chemicals.
Uses
Used in Textile Industry:
Azo Yellow is used as a dye for wool, silk, and polyamide fiber dyeing due to its colorfastness properties.
Used in Leather Industry:
Azo Yellow is used in leather shading for its ability to provide a consistent color.
Used in Paper Industry:
Azo Yellow is used in paper shading to achieve a uniform color.
Used in Soap Industry:
Azo Yellow is used in soap shading to provide a consistent color.
Used in Organic Pigments:
The heavy metal salts of Azo Yellow are used as organic pigments due to their colorfastness properties.
Standard:
The colorfastness properties of Azo Yellow are evaluated based on various standards such as ISO and AATCC, which measure its performance in terms of light fastness, soaping, perspiration fastness, oxygen bleaching, fastness to seawater, fading, and staining.
Preparation
4-Aminobenzenesulfonic acid diazo, with Diphenylamine coupling, and then using aqueous sodium nitrite processing, form N-and the nitro derivatives, then nitrification, into two or three nitro
Standard
Light Fastness
Fading
Stain
ISO
2
AATCC
1
Check Digit Verification of cas no
The CAS Registry Mumber 12627-77-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,2,6,2 and 7 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 12627-77:
(7*1)+(6*2)+(5*6)+(4*2)+(3*7)+(2*7)+(1*7)=99
99 % 10 = 9
So 12627-77-9 is a valid CAS Registry Number.
