ACID RED 2
CAS# 845-10-3
General Description: Water soluble dye from the Monoazo family of colorants. This dye is commonly used as a pH indicator and as a colorant in assorted acidic cleaning products.
Type: Acid
Color: Red
Number: 2
CAS#: 845-10-3
Color Index #: 13020
Appearance: Light brown powder
Shade (in solution): Red in pH < 4.4;
Orangey in pH > 4.5 and < 6.1;
Yellowish in pH > 6.2
Solubility: Soluble in water
Usage Rate: Commonly used at 0.0001 – 0.01% by weight
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