Life of a Fixing Bath The useful life of a fixing bath depends on several factors. One of which is the amount of material treated in the fixing bath.
Fixing Bath A solution that removes any light-sensitive silver-halide crystals not acted upon by light or developer, leaving a black-and-white negative or print unalterable by further action of light. Also referred to as hypo.
Fixing Bath - A solution that removes light-sensitive silver-halide crystals from a negative or print so that the image is fixed (cannot be changed by further exposure). Also referred to as hypo.
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Acid Fixing Bath. As the name indicates, this next step is also acidic and its purpose is to wash away all of the unreduced silver halide crystals from the negative, leaving lower negative density areas which translate to darker areas in the print.
A fast fixing bath that includes ammonium thiosulphate or thiocyanate.
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HYPO - A fixing bath composed of various chemicals including sodium thiosulfate and water.
Rapid fixer. Fixing bath using ammonium thiosulfate or thiocyanate instead of the normal sodium thiosulfate. Enables fixing time to be greatly reduced, but is more expensive.
acid fixer (fix) (fixer) (fixing bath)
a chemical solution containing sodium thiosulfate and diluted acetic acid that renders photographic images on film or paper permanent, ...
If the colors in the print are yellow, brown, or reddish- brown, any normal fixing bath can be used. However, take care not to over- fix, or a color shift may occur.
Hypo
Common name for a fixing bath that's made with sodium thiosulphite salts which used to be known as hyposulphite of soda.
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-Alum - chemical used in acid hardening fixing baths.
-Aluminum compounds - groups of chemicals often used as hardeners in fixing baths.
-Sodium metabisulfite - used as an acidifying agent in acid fixing baths.
-Sodium sulfide - chemical used in sulfide (sepia) toning.
-Sodium sulfite - chemical commonly used as a preservative in many developing solutions.
Alum
A common chemical used in acid hardening fixing baths.
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 See also: Fixing, Photograph, Photography, Film, Negative
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