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Chromium [Cr2O7]2-

Description

A quick overview of the reactions of Chromium

Mind Map by Chad Astbury, updated more than 1 year ago

	Created by Chad Astbury almost 9 years ago

Resource summary

Chromium [Cr2O7]2-

Orange Solution
<-----Acid Alkali----->
1. [CrO4]2-
  1. Yellow Solution
  2. <-----H2O2
    1. [Cr(OH)6]3-
      1. Green Solution
      2. XS NaOH----->
        Cr(H2O)3(OH)3
        Green Precipitate
Zn + HCl OR Fe2+ acidified with HCl
1. [Cr(H2O)6]3+
  1. Green Solution
  2. XS NH3
    1. [Cr(NH3)6]3+
      1. Purple Solution
  3. <-----O2 Zinc and HCl----->
    1. [Cr(H2O)6]2+
      1. Blue Solution
  4. Limited NaOH/NH3
    1. ------->

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