ACID RED 33
CAS# 3567-66-6
General Description: Water soluble dye in the Monoazo family of colorants. This dye is commonly used for the coloration of assorted industrial cleaning products, soaps, detergents, wool, nylon fibers, silk, wood, biological stains, leather, shoe polish, semi-permanent hair dye, and color depositing shampoo and conditioner.
Type: Acid
Color: Red
Number: 33
Color Index #: 17200
CAS#: 3567-66-6
Appearance: Reddish-brown powder
Shade (in solution): Red
Solubility: Soluble in water
Lightfastness: 2-3 [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
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