Sodium Thiosulphate

$8.50$35.50
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Sodium Thiosulphate Na2S2O

Pentahydrate (crystal form)

USED:

Sodium thiosulphate salts  know as fixer  – it stabilises the image, removing the unexposed silver halide remaining on the photographic film or photographic paper, leaving behind the reduced metallic silver that forms the image.