Developer Chemicals and its Function
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7 Terms
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Reducing agent; produces shades of gray rapidly
Reducing agent; produces black tones slowly
Developing agent
Phenidone
Hydroquinone
Elon & Metol
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Helps swell gelatin' produces alkalinity; controls pH
Activator/ Buffer
Sodium Carbonate
Sodium Hydroxide
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Antifog agent; protects unexposed crystals from chemical "attack
Restrainer
Potassium Bromide
Potassium Iodide
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Control oxidation; maintains balance among developer components
Preservatives
Sodium Sulfate
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Control emulsion swelling and enhance archival quality
Hardener
Glutaraldehyde
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Removes metallic impurities; stabilize development agent
Sequestering Agent
Chelates
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Dissolves chemicals for use
Solvent
Water
Note 
Flashcards (53)