collodion


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Related to collodion: Collodion process, flexible collodion, collodion baby

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.

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.

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.
References in periodicals archive ?
However 10 per cent of collodion babies have normal underlying skin -- a mild presentation known as ' self- healing' collodion baby.
Maw-"Back in the Victorian era the best collodion used to be made by Mawson and Swan in Newcastle.
Complicated, cumbersome (it requires darkroom work on the spot) and potentially hazardous, the collodion process uses raw chemicals in a race against the clock.
Collodion was first used as a binder to heal wounds before it was
Wet collodion was still very inconvenient for the very long exposures needed to record deep-sky objects.
It was a very, very foul place to work, but yet they did it," says Todd Harrington, a professional photographer and modern-day practitioner of the wet-plate collodion process used by Brady.
I took it, developed it in its silver collodion bath
While the wet collodion process allowed for negatives with 'fine detail and subtle tones,' (21) exposure times were too long to record accurately anything but images of completely static scenes.
Ultrathin sections were cut, stained with 5% uranyl acetate and 5% lead citrate, and deposited on electron microscopy grids that were coated with collodion membrane for examination under a Jeol 1010 transmission electron microscope.
Saturday's launch will include free, hands-on demonstrations from 2-5pm by wet plate collodion expert John Brewer, who will also give a talk at 6pm.
Many variations of anastomosing these vessels were used, from direct suture to the use of collodion tubes over which the vessel was sutured.
As did so many photo hobbyists of the 1860s, Cameron used collodion (a mix of nitrocellulose, alcohol, and ether applied to a glass plate) to produce a light-sensitive surface.