Ca(OH)₂

Hydrated Lime

The workhorse alkali for drilling fluids, subgrades, and water treatment.

Texas ⇄ Northern Mexico
Base fluid Water-based: Standard use Oil / synthetic: Standard use Brine-based: Conditional

Calcium hydroxide is one of the most versatile industrial alkalis. In drilling fluids it buffers pH and protects against cement contamination downhole; in construction it chemically stabilizes clay subgrades into a workable, load-bearing base; in water treatment it raises pH and drives coagulation and softening.

Hydrated Lime
Hydrated Lime

Typical Specifications

What you're buying.

PropertyValue
Chemical formulaCa(OH)₂PER STANDARD
Available lime as Ca(OH)₂90% minimum typicalTYPICAL — CONFIRM
AppearanceDry white powderTYPICAL — CONFIRM
Fineness, passing 200 mesh85% minimum typicalTYPICAL — CONFIRM
Free moisture2.0% maximum typicalTYPICAL — CONFIRM
Bulk density25 – 35 lb/ft³ typicalTYPICAL — CONFIRM

Per standard values are requirements of the cited specification. Typical values reflect commercial norms and should be confirmed against the certificate of analysis for your specific shipment.

Principal Industrial Uses

Where it's used, and why.

Drilling Fluids

Maintains alkalinity and buffers pH in water-based muds, and treats out cement contamination when drilling out shoe tracks and plugs.

Soil Stabilization

Reacts with clay soils to reduce plasticity and swell potential, producing a stable working platform for pads, roads, and building foundations.

Water & Wastewater Treatment

Raises pH, softens hard water by precipitating calcium and magnesium, and aids coagulation and sludge conditioning.

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