Photographers' Formulary Sodium Citrate - 10 Grams

BH #PHSC10GQ • MFR #10-1220 10G
Photographers' Formulary
Photographers' Formulary Sodium Citrate - 10 Grams
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Photographers' Formulary Sodium Citrate - 10 Grams

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Photographers' Formulary 10-1220 10G Overview

Photographers' Formulary 10-1220 10G Specs

SynonymsCitrosodine
Trisodium citrate
Citric acid, trisodium salt
2-hydroxy-1,2,3-propanetricarboxylic acid, trisodium salt, dihydrate
Sodium citrate dihydrate
AppearanceWhite crystals
Odorless
UsesIn a sizing/salting solution for Albumen printing
Preservative
Chemical FormulaHOC (COONa) (CH2COONa)2. 2H2O
NotesAlbumen prints use good quality paper - preferably-hand made or mould-made watercolor paper - which is soaked in a salt solution (this can be sodium chlodide, but is often sodium citrate and ammonium chloride, usually around 4% by weight) and dried. In subdued light, it is brushed with a generous coating of silver nitrate solution (around 12% by weight - sometimes containing a little citric acid) and dried in darkness or very subdued light.
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