Sodium Bicarbonate (NaHC03) is commonly known as Bi-Carb, Baking Soda or Bicarbonate of Soda.
Sodium Bicarbonate is most commonly used for treating cement contamination by precipitating the calcium as calcium carbonate and reducing the pH. The available H+ ion can reduce the pH in any drilling fluid with a pH above 8.5.
As a pre-treatment for drilling hard cement, 22.6 kg of Sodium Bicarbonate will treat approximately 1 cubic foot of cement. If green cement is anticipated, 2-3 times as much Sodium Bicarbonate will be required.
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