ACID BLUE 3
CAS# 3536-49-0

General Description: Water soluble dye from the Triphenylmethane family of colorants.  This dye meets various EU rules for use as a colorant in select foods.  This dye is also commonly used for the coloration of various cleaning products including soaps and detergents, water soluble adhesives, cellulosic materials, silk, acetate, nylon and wool. 

Type: Acid

Color: Black

Number: 3

CAS#: 3536-49-0

Color Index #: 42051

Appearance: Dark powder

Shade (in solution): Blue

Solubility: Soluble in water

Lightfastness: 1 [AATCC; 8 is highest]

Usage Rate: Most commonly used at 0.0001 – 0.1% by weight

pH Stability: Expected to be most stable in pH 5-11.  In pH < 5 the dye turns green.  In pH > 11 the dye turns pink.