Gold Vials Whats The Liquid Used In Vials Of Floating Gold?

Whats the liquid used in vials of floating gold? - gold vials

Hello, I know that is using the correct fluid in pots or bottles floating gold leaf. The kind sold as novelties in the cities of gold rush. I was told that there is a mixture of glycerin and alcohol. If this is true, I really want to know what proportion of the mixture used. Thank you:)