Sodium Sulphate

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    Trenchless and Technical Drilling Fluids & Additives

    Sodium Sulphate

    Sodium Sulphate (Anhydrous Na2SO4 also referred to as Sodium Sulfate) is commonly referred to as salt cake. Sodium Sulphate reacts with cement hydration products such as calcium hydroxide to form calcium sulfate. The calcium sulfate reacts with aluminates having an expansive effect on cement. Improved cement bonding is one of the benefits of using Sodium Sulphate in cement slurries. Typical treating rates range up to 10% by weight of cement.

    Sodium Sulphate is used as a drilling mud additive to assist in hole stability while drilling through evaporite beds and stringers such as anhydrite. The Sodium Sulphate reduces the anhydrite solubility, thus reducing the hole enlargement through the evaporate.

    Sodium Sulphate product sheet

    a white bag with a sign on it
    a pile of sodium sulfate

    Mixing & Handling

    Physical Properties

    Chemical Properties

    Packaging & Controls

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