Question

What is collodion?

Answer 1

Collodion is a flammable syrupy solution of nitrocellulose, ether and alcohol. It is used as a coating solution in surgical dressings. It is of two types- flexible and non-flexible. It is also used in a former photographic process.

Complete answer:
Collodion is a syrupy solution which contains nitrocellulose along with a mixture of ether and alcohol. It is differentiated into two types- Flexible collodion and Non-flexible Collodion. Flexible collodion is used in surgical dressings .It is a yellowish viscous solution which is used to seal wounds. Non-flexible collodion is used in makeup. It is used for creating special effects especially for creating scars on skin. It is applied on a small patch of the skin and then left to dry. It results in creation of wrinkles on skin which then helps in creating the real look of scars.
Rigid collodion solution can result in the creation of real scars, so one needs to remove the collodion solution properly from skin to avoid any real image. It should not be kept applied for long periods on the faces of actors. It can produce toxic results on combustion as release of carbon monoxide, hydrogen cyanide and oxides of nitrogen may take place which can cause serious health hazards.

Note:
Collodion process was invented by Frederick Scott Archer in 1851 for photographic technique. It is used as an adhesive to seal wounds and the ether present in it decreases the skin which gives the optical impression of scars. Nitrocellulose is used in liquid bandage products. It is also used in cleaning telescope mirrors.