ACID BLUE 40
CAS# 6424-85-7

General Description: Water soluble dye in the Anthraquinone family of colorants.  This dye is commonly used in soaps, detergents, assorted industrial cleaning products, and for coloring leather, paper, cellulosic materials, silk, nylon, and wool. 

Type: Acid

Color: Blue

Number: 40

CAS#: 6424-85-7

Color Index #: 62125

Appearance: Dark powder

Shade (in solution): Blue

Solubility: Soluble in Water

Lightfastness: 4-6 [AATCC; 8 = highest]

Usage Rate: Commonly used at 0.0005 – 0.1% by weight

pH Stability: Expected to be most stable in pH 3-11