Calcium Oxide (CaO) Texas — Industrial-Grade Supply

Calcium oxide (CaO), produced by calcining high-calcium limestone at temperatures exceeding 1,800°F, is classified as a high-reactivity alkaline mineral essential to Texas's energy, environmental, and construction sectors. Its primary chemical properties — strong alkalinity (pH 12.4 in solution), high exothermic reactivity with water, and capacity to neutralize acids and precipitate heavy metals — make it irreplaceable in applications where rapid, powerful pH correction or soil modification is required.

VP Trading Company's Minerals Division sources industrial-grade CaO and supplies it throughout Texas with documentation packages that satisfy OSHA, TCEQ, and Railroad Commission of Texas compliance requirements.

The choice between calcium oxide (CaO) and calcium hydroxide (Ca(OH)₂) depends on your application's required reaction rate, handling infrastructure, and pH targets. CaO provides higher calcium content per unit mass (56.08 vs. 74.09 g/mol) and faster reactivity, making it preferred where rapid pH elevation is needed — such as emergency water treatment pH correction or rapid-response oilfield waste treatment.

However, CaO's exothermic slaking reaction requires proper equipment and handling protocols. For applications where controlled, gradual pH adjustment is preferable — such as drilling fluid buffering or mortar production — calcium hydroxide's pre-slaked, stable form is often more practical. Our technical team can advise on the appropriate product for your specific process requirements.