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10 Cards in this Set
- Front
- Back
Unexposed and undeveloped silver bromide grains in the film's emulsion are removed by the what?
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the fixer solution
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Approximately how much is the silver in the film emulsion is transferred to the fixer solution?
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80% with 20%forming the radiographic image
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What are the four basic methods of silver recovery?
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1) electrolysis recovery method
2) metallic replacement 3) chemical precipitation 4) galvanic reaction |
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What is the only method that permits the reuse of the fixer?
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electrolysis recovery method
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What method replaces the silver with a less valuable base metal?
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metallic replacement
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What method recovers the silver by adding chemicals to the fixer?
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chemical precipitation
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Why is it recommended that the chemical precipitation method be done in a separate facility?
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The chemical reaction generates obnoxious fumes and odor
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What method produces a electric charge chemically and then plating the silver onto cells?
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galvanic reaction
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How is silver recovered from film?
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1) strip the emulsion from the film with chemical and mechanical means and refine it
2) burn the film in a incinerator and process the ash to obtain the silver |
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What is the most economical way to remove the silver from the film?
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Burning the film in a incinerator
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