Description

Calcium Magnesium Oxide is a high-purity, mixed metal oxide compound with the CAS registry number 37247-91-9. This material is valued for its synergistic properties, combining the beneficial characteristics of both calcium and magnesium oxides into a single, stable product. It serves as a critical functional additive and processing agent across several heavy industries. Key sectors that utilize this compound include steelmaking, environmental remediation, construction materials, and agricultural soil amendment.

Application

• Steel Desulfurization & Refining: Acts as a highly effective desulfurizing and dephosphorizing agent in secondary steelmaking processes to improve steel quality and mechanical properties.
• Flue Gas Desulfurization (FGD): Used as a sorbent in dry or semi-dry scrubbing systems to remove sulfur dioxide (SO₂) from industrial exhaust gases.
• Construction & Building Materials: Functions as a stabilizing agent and set controller in specialty cements, mortars, and other inorganic binders.
• Soil Stabilization & pH Adjustment: Applied in agriculture and civil engineering to correct soil acidity, supply essential nutrients (Ca and Mg), and improve soil structure.
• Wastewater Treatment: Employed for pH correction and as a precipitating agent for heavy metals and phosphates in industrial effluent treatment.
• Refractory & Ceramic Production: Serves as a component in the formulation of refractory linings and ceramic bodies, contributing to thermal stability and structural integrity.
• Chemical Synthesis Intermediate: Used as a starting material or catalyst in various inorganic synthesis processes.

Basic Information

Product Name	Calcium Magnesium Oxide
CAS No.	37247-91-9
Molecular Formula	Typically represented as xCaO·yMgO
Molecular Weight	Varies with CaO:MgO ratio
Synonyms	Calcium Magnesium Oxide
Dolomitic Quicklime
Calcined Dolomite
Burnt Dolomite
Calcium Magnesium Oxide Mixture
CaO-MgO
Magnesium Calcium Oxide
EINECS	Contact for details

Quality Control

Our Calcium Magnesium Oxide is manufactured under strict process controls to ensure batch-to-batch consistency and high performance. Quality is verified through a comprehensive suite of analytical tests, including chemical assay, particle size distribution (PSD), and reactivity measurements. While we offer standard industrial and technical grades, production can be aligned with specific customer requirements. A Certificate of Analysis (COA) detailing key parameters is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and can absorb carbon dioxide from the air, which may affect its reactivity. Keep the container tightly sealed when not in use and store away from incompatible materials such as strong acids.

Specification

Item	Specification
Appearance	White to off-white powder
Assay (as total CaO + MgO)	≥ 95.0 %
Calcium Oxide (CaO) Content	50 - 60 %
Magnesium Oxide (MgO) Content	35 - 45 %
Loss on Ignition (LOI)	≤ 3.0 %
Acid Insolubles	≤ 1.5 %
Particle Size (Passing 200 mesh)	≥ 90 %
Reactivity (T60)	≤ 120 seconds

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.