thiosulphate

/ ˌθaɪəʊˈsʌlfeɪt /

noun

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Nathanson11 discovered in the sea water the existence of bacteria which oxidize thiosulphate to sulphuric acid.

The mixture is then cooled, acidified by means of sulphuric acid, and titrated with decinormal sodium thiosulphate solution.

Sodium thiosulphate is familiar as sodium hyposulphite, the hypo of the photographers.

This is done by immersing the plate in a solution of sodium thiosulphate (hypo).

Direct titration with sodium thiosulphate solution indicated the presence of 1.68 per cent.

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