ACID BLUE 93
CAS#
28983-56-4

General Description: Water soluble dyes from the Triphenylmethane family of colorants.  This dye is commonly used for the coloration of acidic industrial cleaning products, silk, cotton, inks, indicators, and leather. 

Type: Acid

Color: Blue

Number: 93

CAS#: 28983-56-4

Color Index #: 42780

Appearance: Dark purplish-blue powder

Shade (in solution): Blue

Solubility: Soluble in water

Usage Rate: Commonly used at approximately 0.005% by weight of ready to use product.  Inks and stains commonly use the dye at approximately 0.5% by weight.

pH Stability: Most stable in pH < 7.  In pH ≥ 7 the dye tends to fade