Bellini Sodium Thiosulphate Pentahydrate - 1kg

This 1kg bag of hypo is perfect for bulk mixing, and it dissolves completely clear without any grit. I finally have a reliable source for my darkroom fixer that's consistent batch to batch.

I've been mixing my own fixer for years and this 1kg bag of sodium thiosulphate pentahydrate dissolves clear without any residue. The 33% water content means I can accurately calculate my working solution strength every time.

My fixer stock was running low for my darkroom sessions, and this 1kg penta form mixed up crystal clear with no residue left behind. The 33% water content means I had to adjust my dilution math, but the fixing action was perfectly consistent across several rolls of film.