
Bellini Sodium Thiosulphate, Pentahydrate version 1 kg.
Availability: In Stock
(£12.25 ex VAT)
Availability: In Stock
(£12.25 ex VAT)
Sodium Thiosulphate is a standard and universal fixing agent. This ''penta'' version with 33% water in it and is often referred to as Hypo.
The molecular formula is: Na2S2O3.xH2O
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