4430-18-6 Usage
Description
ACID VIOLET 43 is an anthraquinone colorant that is used in various applications, including cosmetic formulations, dyeing of wool and its products, and dyeing and printing of fabrics such as wool, silk, and nylon. It is characterized by its bluish violet hue in daylight and slightly redder appearance in artificial light.
Uses
Used in Cosmetic Industry:
ACID VIOLET 43 is used as a colorant for cosmetic formulations, such as semi-permanent hair dyes, at a maximum concentration of 0.5% active dye. It is allowed as CI 60730 in cosmetic products except those intended to come into contact with mucous membranes according to the EU Cosmetics Directive 76/768/EEC.
Used in Textile Industry:
ACID VIOLET 43 is used as a dye for the dyeing of wool and its products. It is also used for dyeing and printing of wool, silk, nylon, and their fabrics.
Used in Leather Industry:
ACID VIOLET 43 is used for leather dyeing.
Properties and Applications:
ACID VIOLET 43 has a bluish violet hue in daylight and is slightly redder in artificial light. It is soluble in alcohol and water. In concentrated sulfuric acid, it appears blue, and upon dilution, it turns olive-brown with a purple precipitate. The colorant has various fastness properties, such as light fastness (ISO 5, AATCC 3), soaping fastness (ISO 1-2, AATCC 1), perspiration fastness (ISO 1-2, AATCC 1), oxygen bleaching (ISO 3-4, AATCC 2), and fastness to seawater (ISO 1, AATCC 1).
Preparation
Acid Violet 43 can be prepared by sulfonating the anthraquinone color, C.I. 60725 and converting it to the sodium salt (Society of Dyers and Colourists 1971b).Will be 1,4-Dihydroxyanthracene-9,10-dione or anthracene-1,4,9,10-tetraol or 1-Bromo-4-hydroxyanthraquinone (or 1-Chloro-4-hydroxyanthracene-9,10-dione) and reaction p-Methylaniline, then stlfonation, and translated into sodium salt.
Flammability and Explosibility
Nonflammable
Safety
In 2001, the Cosmetic Ingredient Review (CIR) Expert Panel (Panel) published a safety assessment with the conclusion that Acid Violet 43 is safe for use in hair dye formulations when free of impurities except for the following: ≤18% volatile matter (at 135°C) and chlorides and sulfates (calculated as sodium salts); ≤0.4% water-insoluble matter; ≤0.2% 1-hydroxy-9,10-anthracenedione; ≤0.2% 1,4-dihydroxy-9,10-anthracenedione; ≤0.1% p-toluidine; ≤0.2% p-toluidine sulfonic acids, sodium salts; ≤1% subsidiary colors; ≤20 ppm lead (as Pb); ≤3 ppm arsenic (as As); ≤1 ppm mercury as (Hg); and ≥80% total color.Amended Safety Assessment of Acid Violet 43 as Used in Cosmetics
Standard
Light Fastness
Fading
Stain
ISO
5
AATCC
3
Check Digit Verification of cas no
The CAS Registry Mumber 4430-18-6 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,4,3 and 0 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 4430-18:
(6*4)+(5*4)+(4*3)+(3*0)+(2*1)+(1*8)=66
66 % 10 = 6
So 4430-18-6 is a valid CAS Registry Number.
InChI:InChI=1/C21H15NO6S.Na/c1-11-10-12(29(26,27)28)6-7-15(11)22-16-8-9-17(23)19-18(16)20(24)13-4-2-3-5-14(13)21(19)25;/h2-10,22-23H,1H3,(H,26,27,28);/q;+1/p-1
