Question

Colloidal solution of cellulose nitrate in alcohol is called

• A. Aquadag
• B. Argyrol
• C. Colloidion
• D. Purple of cassius

Answer 1

The correct option is C

Colloidion

Collodion is a flammable, syrupy solution of cellulose nitrate in ether and alcohol. There are two basic types: flexible and non-flexible. The flexible type is often used as a surgical dressing or to hold dressings in place. When painted on the skin, collodion dries to form a flexible nitrocellulose film. While it is initially colorless, it discolors over time. Non-flexible collodion is often used in theatrical make-up.