2519-28-0 Usage
Description
Vat Blue 6, Solubilized is a brilliant blue dye that appears as a yellow powder. It is soluble in water, with its solution exhibiting a fluorescent yellow color. When treated with concentrated sulfuric acid, it turns brown but becomes sky blue upon dilution. This dye is known for its easy coloring and tendency to overoxidize.
Uses
Used in Textile Industry:
Vat Blue 6, Solubilized is used as a dye for cotton fabric dyeing and printing. It is also suitable for dyeing and printing silk and polyester/cotton blended fabrics. The dye can be applied through various methods, including disseminated and pad dyeing, as well as direct printing.
Standard:
The dye meets various industry standards for different properties, such as:
Ironing Fastness: ISO 5, AATCC 5
Chlorine bleach: ISO 3-4, AATCC 4-5
Light Fastness: ISO 7-8, AATCC 7-8
Mercerized: ISO 4, AATCC 4
Oxygen bleach: ISO 4, AATCC 4-5
Soaping: ISO 4-5, AATCC 4-5
Fading: ISO 4-5, AATCC 4-5
Stain: ISO 5, AATCC 5
These standards indicate the dye's performance and resistance to various conditions, such as ironing, bleaching, light exposure, and washing.
Preparation
(a) in the presence of Pyridine , with Chlorosulfonic acid treatment C.I. Vat Blue 6 leuco; (b) in the Pyridine with metal (such as copper, iron, zinc, etc) and Sulfur trioxide source (such as Sulfur trioxide, Chlorosulfonic acid or Methyl chlorosulfonate, etc.) processing ?C.I. Vat Blue 6,. The above two kinds of situation after alkaline, filter out insolubles, remove Pyridine and salting out. Acetyl anthraquinone in condensation ago, use the above one way into leuco two sulfate, and then in the alkali solution of hydrolysis, oxidation and salting out. Note: the preparation of potassium, sodium, such as lithium, calcium, such as 2-Aminoethanol salt products
Standard
Ironing Fastness
Fading
Stain
ISO
5
AATCC
5
Check Digit Verification of cas no
The CAS Registry Mumber 2519-28-0 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,5,1 and 9 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 2519-28:
(6*2)+(5*5)+(4*1)+(3*9)+(2*2)+(1*8)=80
80 % 10 = 0
So 2519-28-0 is a valid CAS Registry Number.
InChI:InChI=1/C28H16Cl2N2O16S4.4Na/c29-17-9-15-19(27(47-51(39,40)41)13-7-3-1-5-11(13)25(15)45-49(33,34)35)23-21(17)32-24-20-16(10-18(30)22(24)31-23)26(46-50(36,37)38)12-6-2-4-8-14(12)28(20)48-52(42,43)44;;;;/h1-10,31-32H,(H,33,34,35)(H,36,37,38)(H,39,40,41)(H,42,43,44);;;;/q;4*+1/p-4
