| 11. | The right concentration of dichromate is always a compromise between speed and contrast.
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| 12. | A mixture of potassium dichromate and dilute sulfuric acid can also be used.
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| 13. | This method used the oxidizing agent potassium dichromate.
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| 14. | Other popular bleach solutions use potassium dichromate ( a hexavalent chromium ) or permanganate.
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| 15. | During this time the sunlight and potassium dichromate tan the gelatine exposed to light.
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| 16. | The ammonium dichromate acts as the photoactive site.
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| 17. | Potassium chlorochromate can be prepared from potassium dichromate, hydrochloric acid, and water.
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| 18. | The plate is developed by carefully washing out the dichromate salt and dried without heat.
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| 19. | His comments about potassium dichromate were fair, moderate, uncontentious, factual and neutral.
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| 20. | Ullman has gone beyond simple tendentious editing into full trolling at Talk : Potassium dichromate.
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