Acetic Acid A chemical substance such as a stop bath or fixer with a pH below 7 that's used to stop film or paper development instantly Search SWPP and BPPA Information provided by: SWPP BPPA More Photographic Terms ...
acetic acid an organic acid used in testing acid resistance of a material; photographic, the active ingredient in stop bath or fixing baths. acetate butyrate an extruded thermoplastic that can be decorated and heat-formed.
-Acetic acid - chemical used for stop baths and to acidify acid fixing solution. -Acetone - solvent chemical used in certain processing solutions that contain materials not normally soluble in water.
Acetic acid Is a chemical used for stop bath which stops the action of the alkaline developer. Acetone A solvent chemical used in certain processing solutions that contain materials not normally soluble in water.
5 glacial acetic acid to 8 ounces of water to obtain 11 ounces of a 28 percent solution of acetic acid. temperatures upon contact with organic materials and other chemicals.
A stop bath, which stops the action of developer, typically a dilute solution of acetic acid. In modern automatic processing machines, this step is replaced by mechanical squeegee or pinching rollers.
Agitate the print in an acetic acid stop bath for about 30 seconds. White lights can be turned on while the print is in the stop bath. If the colors in the print are yellow, brown, or reddish- brown, any normal fixing bath can be used.
Stop An acid rinse, usually a solution of acetic acid, whose purpose is to stop development by neutralizing unwanted developer when processing black-and-white film or paper. (see Dev.) Strobe Generic term for electronic flash.
STOP BATH - An acid bath or rinse (usually a weak solution of acetic acid) for stopping the action of a developer before fixing a negative or print. STOPPING DOWN - Reducing aperture size - for example, from ƒ/16 to ƒ/22.
Stop Bath An acid rinse, usually a weak solution of acetic acid, used as a second step when developing black-and-white film or paper. It stops development and makes the hypo (fixing bath) last longer.
Darkroom material. An acid rinse, usually a weak solution of acetic acid, used as a second step when developing black-and-white film or paper. It stops development and makes the hypo (fixing bath) last longer. Stopping Down ...
Most commonly stop bath is acetic acid, which is commonly referred to as vinegar. It is not, however, suitable for use in salads.
Stop bath: This is typically acetic acid, which neutralizes the alkaline solution required for development and thus halts development. ...
As it starts to degrade, the film releases acetic acid which gives off a vinegar odour. Such decay can make the film unusable, but research has shown that vinegar syndrome can be delayed by proper storage.
Stop-bath. Stage in processing that arrests the action of the previous solution (e.g. a weak solution of acetic acid used between development and fixation). Stop down. To decrease the size of the lens aperture. The opposite of open up.
a 'stop bath' which neutralises the developer and prevents any further development of the image from taking place. Developers work most effectively in an alkaline environment which is why an acid stop bath is used. Stop bath: 1% solution acetic acid.
See also: Acid, Photograph, Film, Light, Time
 
|