Collodion is a mixture of Ethyl Ether, Ethyl Alcohol, nitrocellulose and trace amounts of an iodide and bromide.
<Context ref.>AlternativePhotography.com: the wetplate collodion process. [En línia]. [Consulta: 5 juny 2006]. Disponible a: <http://www.alternativephotography.com/process_wetplate.html>