collodion


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collodion

(kəlō`dēən), solution of pyroxylinpyroxylin
, partially nitrated cellulose (see nitrocellulose). It is used in lacquers, plastics, and artificial leathers. Pyroxylin lacquers are made by dissolving pyroxylin in a mixture of volatile solvents and adding a plasticizer and a pigment or dye.
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 in a mixture of alcohol and ether. Upon exposure to air, the solvents evaporate, leaving a thin, colorless, elastic film on any surface upon which the collodion has been spread. Collodion is the forerunner of the lacquer paints that are now widely used in the automobile industry.
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The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Collodion

 

an alcoholether solution of nitrocellulose; a colorless, transparent, or slightly yellowish liquid with the odor of ether. When applied to the skin, collodion congeals, forming a thin, tough film. It is used to secure surgical bandages and to coat small wounds and abrasions.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.

collodion

[kə′lōd·ē·ən]
(organic chemistry)
Cellulose nitrate deposited from a solution of 60% ether and 40% alcohol, used for making fibers and film and in membranes for dialysis.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
If working with glass, he has to clean the surface and seal it with egg white, then pour the mixed collodion evenly onto the plate.
Then he inserts it into a silver nitrate solution, which upon exposure would turn dark, with the collodion solidifying the forms to the plate.
We noted 2 cases of collodion baby, 2 cases of body dysmorphic syndrome and a case of Kasabach-Merritt syndrome as an incidental finding.
Leroy, "Allergic contact dermatitis to colophony included in the formulation of flexible collodion BP, the vehicle of a salicylic and lactic acid wart paint," Dermatologic Clinics, vol.
[26] Inn KGW, Hall E, Woodward JT IV, Stewart B, Pollanen R Selvig L, Turner S, Outola I, Nour S, Kurosaki H, La Rosa J, Schultz M, Lin Z, Yu Z, McMahon C (2008) Use of thin collodion films to prevent recoil-ion contamination of alpha-spectrometry detectors.
It also included a section of Mann's experiments with early photographic collodion techniques from the 1860s to capture ravaged glimpses of the landscape of Antietam, site of the bloodiest battlefield of the American Civil War, brooding on the landscape's 'underpinnings of death'.
Shunning the digital age, he is taking his unique images on glass, using an Edwardian camera and a Victorian process known as wet plate collodion.
"I think it's the first time an airborne helicopter has been recorded with a wet plate collodion camera."
This included the use of collodion glue and taping of the incision sites with 3M Micropore tape.
Jack points out that Fenton also toured Britain with his horse-drawn mobile darkroom and would have used the same 'wet collodion' photographic process which he chose for his Lifeboat Station Project.
Often working with large-format cameras and older techniques such as the wet plate collodion process, in which the photographer exposes the Mann's editing notes on wedding portrait taken by her father: "He wasn't a very good photographer, so this picture is really just an accident.
A number of post-process coatings to protect the images against environmental effects include coatings and varnishes made with collodion, shellac, and beeswax.