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Sodium thiosulfate - hyperleap.com
- https://hyperleap.com/topic/Sodium_thiosulfate#:~:text=Herschel%20discovered%20sodium%20thiosulfate%20to%20be%20a%20solvent,after%20experimentally%20applying%20it%20thus%20in%20early%201839.
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Sodium Thiosulfate fixer | Photrio.com Photography …
- https://www.photrio.com/forum/threads/sodium-thiosulfate-fixer.48212/
- Pour the distilled water into a pot and heat it on a hot plate to 125°F. Transfer it to a large graduate. Gently sprinkle the sodium thiosulfate into the water. Stir with a mixing rod until all the crystals have dissolved. Pour the solution into a dark brown glass or plastic bottle. Lable this bottle "Sodium Thiosulfate/VDB fixer".
Sodium Thiosulfate fixer | Photo.net Photography Forums
- https://www.photo.net/discuss/threads/sodium-thiosulfate-fixer.17662/
- sodium OR ammonium type fixer. The downside is that the sodium fixer takes longer, thus has longer to penetrate and adsorb; it dissolves more "image" and probably leaves more thiosulfate behind after washing. (Note: there is a school of thought that SOME residual thiosulfate MIGHT be preferable to NONE.) Anyway, ammonium type
Sodium Thiosulfate Pentahydrate Used For Photographic Fixing …
- http://www.hn-sante.com/product/sodium-thiosulfate-pentahydrate-used-for-photographic-fixing-agent
- Sodium Thiosulfate Pentahydrate Used For Photographic Fixing Agent Manufacturers & Factory. We accept OEM custom products all made in China.
US2735774A - Concentrated photographic fixing - Google …
- https://patents.google.com/patent/US2735774A/en
- sodium thiosulfate photographic fixing acid solution Prior art date 1954-07-26 Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Lifetime
Photographic fixer - Wikipedia
- https://en.wikipedia.org/wiki/Photographic_fixer
- Fixation is commonly achieved by treating the film or paper with a solution of thiosulfate salt. Popular salts are sodium thiosulfate —commonly called hypo—and ammonium thiosulfate —commonly used in modern rapid fixer formulae. Fixation involves these chemical reactions (X = halide, typically Br − ): AgX + 2 S 2 O 32− → [Ag (S 2 O 3) 2] 3− + X −
Is sodium thiosulphate used in photography? - Answers
- https://www.answers.com/Q/Is_sodium_thiosulphate_used_in_photography
- An emulsion of sodium thiosulfate (called hypo by photographers) is used to stop development of exposed film. Thiosulfate converts undeveloped silver bromide grains in the film into water-soluble...
Photographic fixing | Article about photographic fixing by …
- https://encyclopedia2.thefreedictionary.com/photographic+fixing
- photographic fixing. [ ¦fōd·ə¦graf·ik ′fiks·iŋ] (graphic arts) The process by which the unexposed and unreduced silver halide in a negative is removed in an exposed film; sodium thiosulfate (hypo) is the chemical usually used. McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
Sodium Thiosulfate "Plain Fixer" question [Archive] - Large Format ...
- https://www.largeformatphotography.info/forum/archive/index.php/t-75801.html
- "The most current research indicates that sodium thiosulfate, the photographer's standby for most of the 20th century, cannot adequately fix modern films or papers. This appears to be due to the increased use of iodide in contemporary films and papers.
From Fixing Photos to Fixing Cyanide Poisoning: …
- https://pubs.asahq.org/anesthesiology/article/131/5/1124/108732/From-Fixing-Photos-to-Fixing-Cyanide-Poisoning
- In 1819, a soon-to-be-knighted John Herschel (1792 to 1871) discovered that hyposulfite of soda could “fix” or make photographic images permanent by dissolving away unexposed and otherwise insoluble silver salts.
China Sodium Thiosulfate Pentahydrate Manufacturers
- http://www.hn-sante.com/product-list/sodium-thiosulfate-pentahydrate
- sodium thiosulphate pentahydrate, also called hyposulfite, used as chlorine removal agent after pupl and cotton fabric bleaching, chelating agent, antioxidant, photographic fixing agent, detergents and disinfectants, cyanide and mercury detoxification.
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