X-Nico

unusual facts about Azure A


Romanowsky stain

The demethylation of Methylene Blue in aqueous solution using heat and alkali produces a mixture of Azure A, Azure B, Methylene Violet and Methylene Blue.



see also

Coat of arms of Croatia

Central Croatia - Considered the oldest known symbol representing Croatia: Azure, a mullet of six points Or surmounted above a crescent Argent - A golden six-pointed star (representing the morning star) over a silver crescent moon on a blue shield.