Acid Fixer (buffered) Sodium Thiosulphate Crystals ( 'Hypo' ) :- 250 grammes Sodium Sulphite, anhydrous :- 25 grammes Glacial acetic acid ( 98 - 100%) :- 25ml Water to :- 1000ml. Share on Tumblr Tweet Return to Formulae Contents July 2024 Several books, featuring Christopher John Ball's photographs, are now available through Amazon or click on an image below to purchase via secure payments on lulu.com
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