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Sodium Thiosulphate was originally called Hyposulphite of Soda and Hypo is simply the short form of this common name with is still in use.

The origin of this term is uncertain; these are just deductions.

Hypo is the Greek word for 'under' and if you take a look at the structure of sodium hyposulphate you will note that the sulphite ion (SO3-2) is bonded to a sulphur atom ( as in replacing an oxygen atom of SO4-2 with a sulphur atom- thiosuphate). For purpose of symmetry, the structure of thiosulphate is drawn with the sulphur on top and the sulphite 'under' the sulphur. Hence the term hypo.

It has applications in photographic processing and so does sodium carbonate (called washing soda), hence the term soda.

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Q: Why sodium thiosulfate is known as hypo?
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What is the scientific name of sodium thiosulfate?

A white, translucent crystalline compound, Na2S2O3·5H2O, used as a photographic fixing agent and as a bleach. Also called hypo, hyposulfite; Also called sodium hyposulfite. Source: http://www.answers.com/sodium+thiosulfate?gwp=11&ver=2.3.0.609&method=3


What are the three components in order of administration used to treat cyanide exposure?

Amyl nitrite, sodium nitrite, sodium thiosulfate


How is used Sodium thiosulfate in chlorine removal shampoo?

Sodium thiosulfate neutralizes chlorine.


What solution is produced when water and sodium thiosulfate will mixed?

A solution of sodium thiosulfate is produced.


Is their any sodium mono sulfate?

No. There is no such compound. Apart from sodium sulphate, there is Sodium thiosulfate.Sodium thiosulfate (Na2S2O3)s a colorless crystalline compound that is more familiar as the pentahydrate, Na2S2O3•5H2O, an efflorescent, monoclinic crystalline substance also called sodium hyposulfite or "hypo.


What is the chemical name of Na2S2O4?

Sodium thiosulfate or Sodium Hyposulphite.


What is the procedure for the standardization of sodium thiosulfate?

Thiosulfate can be standardised by adding excess potassium iodide solution to a known volume of a standard acidified solution of potassium dichromate, and then titrating the liberated iodine against the sodium thiosulfate solution.http://www.meduniv.lviv.ua/files/kafedry/tokshim/English/Analytical/Manuals_Analytchem/Iodometry.pdf


Is sodium thiosulfate basic?

Yes.It is!


What does na2s2o3 STANDS FOR?

Sodium thiosulfate


What is the formula for the sodium thiosulfate?

Na2S2O3


Reaction of bromine with sodium thiosulfate?

Bromine will be reduced to bromide and it will oxidize Sodium thiosulfate to Sodium tetrathionate :2 Na2S2O3 + Br2 ----> Na2S4O6 + 2 NaBr


What is used to preserve sodium thiosulfate?

Chloroform and Sodium Hydroxide