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thiosulphate
(thio|sul¦phate)
Pronunciation:
/ˌθʌɪə(ʊ)ˈsʌlfeɪt/
(
US
thiosulfate
)
noun
Chemistry
a salt containing the anion S
2
O
3
2−
, i.e. a sulphate with one oxygen atom replaced by sulphur.
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sodium thiosulphate
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