<skos:altLabel xml:lang="en">sodium thiosulfate</skos:altLabel>
<skos:altLabel xml:lang="en">thiosulfate, sodium</skos:altLabel>
<skos:altLabel xml:lang="en">hyposulfite of soda</skos:altLabel>
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<skos:note xml:lang="en">A chemical compound with the property of making silver salts water-soluble. This property was discovered by Sir John Herschel in 1819, who recommended it as a fixer in photographic processing. It is also used in conservation practice as a cleaning agent for silver and silver-gilt surfaces, and removing silver chloride from wet-washed paper and wet-washed textiles.</skos:note>
<skos:notation>300389874</skos:notation>
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