| 41. | The best known is probably a process using ammonium ferric citrate and potassium ferricyanide.
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| 42. | The teeth are coated with magnetite, a hard ferric / ferrous oxide mineral.
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| 43. | The ferric cations produced can also oxidize additional pyrite and reduce into ferrous ions:
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| 44. | These two pigments are chromium oxide greens / ferric ferrocyanide, or Prussian blue.
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| 45. | Finally, arsenic oxide is removed when the gas is exposed to ferric hydroxide.
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| 46. | Treatment with more iron metal converted the ferric bromide to ferrous bromide via comproportionation.
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| 47. | This enzyme is also called "'ferric leghemoglobin reductase " '.
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| 48. | It reacts with ferric salts to form a deep-red ferric thiocyanate complex:
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| 49. | It reacts with ferric salts to form a deep-red ferric thiocyanate complex:
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| 50. | For example, ferric chloride can be prepared thus, but ferrous chloride cannot.
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