- Standardising a solution

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Chenga

April 8th, 2005 05:47

Standardising a solution

Does anyone know why solutions of sodium thiosulphate have to be standardised? why can the concentration on the bottle be trusted?

john500

April 8th, 2005 15:00

It decomposes. Variables that affect the rate include pH, bacteria, concentration and UV light. See
Analytical Chemistry an introduction, Skoog, D.A., West, Holler, 1990, Saunders, Phil, p 309

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