Making Rochelle Salts

Rochelle Salt also known as Seignette's salt is a special salt with interesting piezo effects. It was one of the first materials discovered to exhibit piezoelectricity! This basically means that as a crystal, it will generate electricity when it is squeezed. This kind of reminds me of the fictitious Dilithium crytals from Star Trek but used differently as to contain and regulate the annihilation reaction of matter and antimatter in a starship's warp core.

If you are having trouble finding Rochelle Salt, you can make it at home! In order to make it at home you will need two ingredients:

  • Cream of Tartar also known as Potassium bitartrate(KC4H5O6) and
  • Sodium Carbonate

Sodium Carbonate(Na2CO3) also know as Soda Ash can be prepared by heating Baking Soda also know as sodium bicarbonate(NaHCO3) in an oven at 200F degrees for 1 hour. After you have your Sodium Carbonate you can make Rochelle Salt with the following formula:

  • 1 Cup of Distilled H2O
  • 7 oz Cream of Tartar
  • 7 oz of Soda Ash

Stir the solution together until clear, filter and let it sit.

Another good recipe for my electrolyte is the following recipe:

  • 1 Part Rochelle Salt
  • 2 Parts Epsom Salt(Magnesium Sulfate)

mix together with denatured alchohol. I have also heard you can use a formual of this type in a solid form without the addition of liquid. You may also dope the solid formula with:

  • calcium carbonate or
  • silver or
  • iron pyrite ( looks like the business scientific community is on to this wonder as they are now using it in battery electrodes, as it is cheap and abundant ) or
  • galena (lead crytals, remeber those old galena whisker radios!)

Then melt it around your copper and magnesium electrodes.

Experiments and research perfomed from 'without the United States'. [ 28 U.S. Code Sec. 1746 ]




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