Photographic fixing agent. 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 silver thiosulfate complexes that can be removed when the film is washed.
S2O32- + AgBr(s) AgS2O3- + Br-
S2O32- + AgS2O3- Ag(S2O3)23-
CN- + S2O32- SCN- + SO32-This reaction is catalyzed by an enzyme produced by cell mitochondria to neutralize small quantities of ingested cyanide (which occurs naturally in cassava root, lima beans, and almonds!).
Sodium thiosulfate is neither an acid nor a base; it is a salt composed of sodium cations and thiosulfate anions. It is often used in photography as a fixing agent to dissolve unexposed silver halide in film or prints.
Sodium sulfate (Na2SO4) is a white crystalline compound used in detergents, paper, and glass manufacturing. Sodium thiosulfate (Na2S2O3) is a colorless crystalline compound used in photography as a fixing agent and in medical treatments for cyanide poisoning. The key difference lies in their chemical structures and applications.
Yes, sodium thiosulfate can be a reactant in chemical reactions, such as in photography as a fixing agent or in medical treatments for cyanide poisoning. It can also be used in measuring the concentration of other substances through titration reactions.
Sodium thiosulphate is typically white in color, appearing as a crystalline powder or solid.
· In analytical chemistry, sodium thiosulphate is used for the determination of the strength of a given solution of iodine. · Sodium thiosulphate is preferred in iodometric analysis due to the fact that sodium thiosulphate is oxidized by iodine. It is also used to determine the strength of many oxidizing agents.
Sodium thiosulfate is neither an acid nor a base; it is a salt composed of sodium cations and thiosulfate anions. It is often used in photography as a fixing agent to dissolve unexposed silver halide in film or prints.
Starch
Sodium sulfate (Na2SO4) is a white crystalline compound used in detergents, paper, and glass manufacturing. Sodium thiosulfate (Na2S2O3) is a colorless crystalline compound used in photography as a fixing agent and in medical treatments for cyanide poisoning. The key difference lies in their chemical structures and applications.
Yes, sodium thiosulfate can be a reactant in chemical reactions, such as in photography as a fixing agent or in medical treatments for cyanide poisoning. It can also be used in measuring the concentration of other substances through titration reactions.
Hypo, or sodium thiosulfate, is used in photography to fix or stabilize the image on photographic paper by removing any unexposed silver halide. This process helps to make the image permanent and prevent further exposure to light from affecting the final print.
Sodium thiosulphate is typically white in color, appearing as a crystalline powder or solid.
Sodium thiosulfate is used in iodometry to titrate iodine, which allows for the determination of the concentration of substances that react with iodine. It serves as a reducing agent that reacts with iodine to form iodide ions in a redox reaction. This reaction is commonly used in analytical chemistry to quantify the amount of oxidizing agents present in a solution.
· In analytical chemistry, sodium thiosulphate is used for the determination of the strength of a given solution of iodine. · Sodium thiosulphate is preferred in iodometric analysis due to the fact that sodium thiosulphate is oxidized by iodine. It is also used to determine the strength of many oxidizing agents.
1.sodium benzoate
Sodium thiosulfate is used against cyanide poisoning and pitiryazis.For nonmedical uses see this link.
because sodium thiosulphate is unstable and iodine also so to maintain neutral medium we have to use sodiumcarboate
Sodium thiosulphate solution (5-25 %)