Solubility of Brilliant Blue (Blue No. 1) in Alcohol

Asked by: Anonymous On: January 21, 2026 Product Type: Cosmetics

Question

Can the following two types of Brilliant Blue, Blue No.1 (CI42090) be dissolved in alcohol?

  • Standard version
  • Water-soluble version

Answer

Brilliant Blue (Blue No.1, CI 42090), in its water-soluble form, can dissolve in alcohol (ethanol), but its solubility is lower than in water.

Here are the details regarding its solubility in alcohol:

  1. Water-Soluble Type (Powder and Liquid):

    • Brilliant Blue, Blue No.1 (CI42090) (Water-Soluble) and its specialized versions like EasyWash™ or HiStain™ can dissolve in ethanol.
    • Even though it is less soluble in alcohol than in water, the amount that dissolves is usually more than enough to provide a vibrant blue color to alcohol-based formulations such as perfumes, hand sanitizers, or toners.
    • It dissolves more easily in alcohol that contains some water (e.g., 70-95% Ethyl Alcohol) compared to absolute alcohol (99.9%).
  2. Lake Type (Pigment):

    • If you are referring to the "Lake" version (e.g., FD&C Blue No.1 Lake), this type is insoluble in both water and alcohol. It is a pigment intended for use in anhydrous systems (like lipsticks) or dispersed in oil/makeup bases.

Recommendations for use in Alcohol-based formulas:

  • If you are making a product like a perfume or a clear alcohol gel, use the water-soluble powder or liquid versions.
  • It is recommended to add a UV protector such as ActiveProtec™ UV to the formula, as blue dyes are often sensitive to light and may fade over time when exposed to sunlight.

Related Products:

  • Brilliant Blue, Blue No.1 (CI42090) (Water-Soluble) (Concentrated powder)
  • Brilliant Blue (CI42090) EasyWash™ (Liquid, easy to wash off)
  • Brilliant Blue (CI42090) HiStain™ (Liquid, long-lasting stain)
  • Ethyl Alcohol (99.9% , 200 Proof) (High purity alcohol)