ACID RED 131
CAS# 70210-37-6

General Description: Water soluble dye in the Monoazo family of colorants. This dye is commonly used in assorted industrial cleaning products, soaps, detergents, water soluble adhesives, and for coloring leather, shoe polish, paper, nylon, silk, wool, and rayon.

Type: Acid

Color: Red

Number: 131

CAS#: 70210-37-6

Appearance: Red powder

Shade (in solution): Red

Solubility: Soluble in water

Lightfastness: 5 [AATCC; 8 is highest]

Usage Rate: Commonly used at 0.001 – 1.0% by weight.

pH Stability: Expected to be most stable in pH 1-11