sodium thiosulphate

To do this, we firstly need to know how to standardize sodium thiosulphate.

Pre-filters based on sodium thiosulphate or Teflon may be appropriate to use.

The agent used is sodium thiosulphate, and reactions according to the following equation:

I bought a produt called Copa and its active ingredient is sodium thiosulphate.

The iodine liberated is titrated with sodium thiosulphate.

The product contains sodium thiosulphate.

Sodium thiosulphate fixed the image.

Replies: Sodium thiosulphate is a good reducing agent, which quickly reacts with oxidizing agents such as peroxides.

Many aquarium keepers (myself included) resort to the use of chemical dechlorinators (cf. physical removal) such as sodium thiosulphate.

It was simply a khaki-coloured flannel bag soaked in hypo solution (glycerin and sodium thiosulphate); it protected against chlorine.

The easiest one to set up that I found (just Google clock reactions) involves sodium thiosulphate, potassium iodide, starch and hydrogen peroxide.

The structure of Sodium tetrathionate is somewhat like two sodium thiosulphate(NaSO) molecules joined together at the S ends.

Sodium tetrathionate is formed by the oxidation of sodium thiosulphate(NaSO),also called Hypo,with liquid Iodine(I).

In order to understand what happens precisely, I would like to know the exact formula for the chemical reaction that occurs when sodium thiosulphate is used to rid water of chlorine and chloramines.

Once development is complete, the undeveloped silver salts must be removed by fixing in sodium thiosulphate or ammonium thiosulphate, and then the negative or print must be washed in clean water.

An acid gas, sodium thiosulphate was used to react with the surface of the farthings after they had been struck, permanently altering their appearance and making it less likely to mistake them for half sovereigns.

Initial reports based on the autopsies of victims' bodies suggested cyanide poisoning based on which UCC's Dr. Bipan Avashia advised amyl nitrate and sodium thiosulphate.

This technique has since been refined to substitute the silver precipitate with gold by immersing the sample in gold chloride then oxalic acid, followed by removal of the silver by sodium thiosulphate.

He discovered sodium thiosulphate solution to be a solvent of silver halides in 1819, and informed Talbot and Daguerre of his discovery in 1839 that it could be used to "fix" pictures and make them permanent.

Fortunately there are many commercially available products, but when this problem first emerged the only treatment available for a time was with sodium thiosulphate. in the days of black and white photography this was readily available but can now be quite difficult to obtain.

As is the case with chlorine solutions or iodine solutions, sodium thiosulphate (or any soluble thiosulphate) is an effective reagent for reducing bromine to colorless odorless bromide, thus dealing with stains and odor from the element in unwanted places.

Sodium thiosulfate (NaSO), also spelled sodium thiosulphate, is a colorless crystalline compound that is more familiar as the pentahydrate, NaSO 5 HO, an efflorescent, monoclinic crystalline substance also called sodium hyposulfite or "hypo."

Back in England he became a manager of Kodak's factory in Wealdstone and was responsible for a number of practical formulas for improving emulsions and developers, one being a negative intensifier containing silver nitrate, ammonium thiocyanate and sodium thiosulphate, and another being dry-collodion plates with improved sensitivity.