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What is the purpose of adding sodium thiosulfate?

What is the purpose of adding sodium thiosulfate?

The purpose of dechlorination with sodium thiosulfate is to stop the oxidation of nitrite to nitrate with chlorine and determine the concentrations of these constituents.

Why is sodium thiosulfate used in photography?

use in photography Sodium thiosulfate (sodium hyposulfite), Na2S2O3, is used by photographers to fix developed negatives and prints; it acts by dissolving the part of the silver salts coated onto film which remain unchanged by exposure to light.

What products contain sodium thiosulfate?

What are some products that may contain Gold Sodium Thiosulfate?

  • Electronics.
  • Gold-plating processes.
  • Medical and dental devices or implants.
  • Gold or gold-plated jewelry.
  • Rheumatoid arthritis treatment.
  • Dental restorations.
  • Gold-plated intracoronary stents.

What is sodium thiosulfate used for in pools?

Sodium thiosulfate for pools removes free chlorine as well as combined chlorine (chloramines) from pools. It’s an easy, safe, and inexpensive way to balance the chemical levels in your pool. There are no negative side effects of using sodium thiosulfate for pools, so you don’t have to worry.

What is sodium thiosulfate used for in lab?

It reacts stoichiometrically (in equimolar amounts) with aqueous solutions of iodine, and so, it is widely used in laboratories for iodine based titrations. Uses: Sodium thiosulfate is used in several pharmaceutical preparations and also has various medical properties.

Why is sodium thiosulfate used in iodometric titration?

Redox titration using sodium thiosulfate, $N{a_2}{S_2}{O_3}$ (usually) as a reducing agent, is known as iodometric titration because it is used exclusively to use iodine. This absorption will cause the solution to change from title to dark blue to light yellow with standardized thiosulfate solution.

Is Na2S2O3 a pure substance?

Sodium thiosulfate (sodium thiosulphate) is an inorganic compound with the formula Na2S2O3xH2O. Typically it is available as the white or colorless pentahydrate, Na2S2O. 5H2O. The solid is an efflorescent (loses water readily) crystalline substance that dissolves well in water.

What is Na2S2O3 called?

Sodium thiosulfate (sodium thiosulphate) is an inorganic compound with the formula Na2S2O3. xH2O. Typically it is available as the white or colorless pentahydrate, Na2S2O3·5H2O. The medical uses of sodium thiosulfate include treatment of cyanide poisoning and pityriasis.

What is the commercial name of sodium thiosulfate?

Sodium hyposulfite Hyposulphite of soda
Sodium thiosulfate

Names
Other names Sodium hyposulfite Hyposulphite of soda
Identifiers
CAS Number 7772-98-7 10102-17-7 (pentahydrate)
3D model (JSmol) Interactive image

How do you give sodium thiosulfate?

For intravenous use. For single use only. Initial dose: 10 mL (300 mg) of sodium nitrite (rate of 2.5 to 5 mL/minute) should be administered intravenously, immediately followed by 50 mL (12.5 g) of sodium thiosulfate (rate of 5 mL/minute).

Does pH down lower chlorine?

Extreme pH changes can also affect how the chlorine works in your pool. Chlorine works most efficiently in water with a neutral pH level between 7.4-7.6. If the pool is too alkaline, or more than a pH of 8.0, the efficiency is less than 20 percent.

How do I add sodium thiosulfate to my pool?

For Sodium Thiosulfate, add about a cup (8 oz) of the dry white crystals per 5,000 gallons of pool water, or 1 oz per 100 gallons – to lower chlorine by 10 ppm. Check your pool water pH and adjust to within label instructions, and add directly to the pool or spa.