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Three Methods:Using Hydrogen PeroxideUsing Nitric AcidUsing Sulfuric Acid

Copper sulfate is used for coloring in paints and fireworks. It can be purchased in the hardware store to kill roots in septic tank pipes, or as an algaecide. But it's also pretty easy (and inexpensive) to make yourself at home - you just need the right chemicals and equipment.


Method 1 of 3: Using Hydrogen Peroxide

  1. 1
    Get 10 milliliters of 30% hydrogen peroxide and add 3 milliliters of concentrated sulfuric acid.
    • Excess heat will be generated, so be careful.
  2. 2
    Add approximately 3 grams of copper, which can be obtained from pipes or wires.

Method 2 of 3: Using Nitric Acid

  1. 1
    Get 30 milliliters of water and add 3 milliliters of nitric acid and 5 milliliters of sulfuric acid.
  2. 2
    Add approximately 6 grams of copper.

Method 3 of 3: Using Sulfuric Acid

  1. 1
    Pour some dilute sulfuric acid into the beaker.
  2. 2
    Attach the battery to the copper electrodes and clip each electrode to the beaker so that the electrode is partially submerged in acid.
  3. 3
    The solution will gradually turn blue at a rate depending on the battery voltage. The copper electrode will dissolve.
  4. 4
    Boil off the water and collect the copper sulfate crystals.

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  • Method 2 will generate nitrogen dioxide, so do this outside or in a fume hood.
  • Sulfuric acid is corrosive and highly reactive. Wear rubber gloves when handling it.
  • Copper sulfate is toxic. Wash hands after handling. Do not reuse vessel for food or consumption.

Things You'll Need

  • An inert beaker or vessel that can withstand acid-salt solution. Uncoated metal is unsuitable as it may react with the copper(II) ion. Glass and Teflon are suitable.
  • Two pieces of copper such as wire and copper coins. (Note: U.S. pennies made since 1982 are primarily zinc and will not work.)
  • Dilute sulfuric acid
  • Household battery and wires

Article Info

Categories: Chemistry

In other languages:

Português: Fazer Sulfato de Cobre

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