Description

Calcium Oxide, also known as quicklime or burnt lime, is a fundamental inorganic compound with the CAS registry number 1305-78-8. It serves as a versatile and highly reactive alkaline agent critical for numerous industrial processes. This product is essential for manufacturers and processors in sectors such as construction, metallurgy, chemical synthesis, and environmental management.

Application

• Steel & Metallurgy: Acts as a fluxing agent in steelmaking to remove impurities (slag formation) and as a desulfurizing agent.
• Construction & Building Materials: Primary component in the production of cement, mortar, plaster, and as a soil stabilizer.
• Chemical Manufacturing: Key raw material for producing calcium hydroxide (slaked lime), calcium carbide, and other calcium compounds.
• Environmental Treatment: Used in flue gas desulfurization (FGD) to scrub sulfur oxides and for pH adjustment in water and wastewater treatment.
• Pulp & Paper Industry: Employed in the kraft process for pulp digestion and chemical recovery.
• Agriculture: Used to amend soil pH (reduce acidity) and improve soil structure.
• Food Processing: As a processing aid (e.g., in sugar refining and corn processing) in FCC-grade quality.
• Waste Treatment: For sludge stabilization and sanitization.

Basic Information

Product Name	Calcium Oxide
CAS No.	1305-78-8
Molecular Formula	CaO
Molecular Weight	56.08 g/mol
Synonyms	Quicklime; Burnt Lime; Lime; Calx; Oxocalcium; Calcium Monoxide; Unslaked Lime; Pebble Lime
EINECS	215-138-9

Quality Control

Our Calcium Oxide is manufactured under strict quality management protocols to ensure batch-to-batch consistency and reliability. We offer various grades, including Industrial, Technical, and Food Chemical Codex (FCC) grades, to meet diverse application requirements. Certificates of Analysis (COA) detailing purity, assay, and impurity profiles are provided with each shipment and are available upon request.

Storage

Preserve in a tightly closed, moisture-proof container, protected from light. Due to its highly hygroscopic nature, store in a cool, dry, and well-ventilated area away from incompatible materials such as acids and organic compounds. Keep the container sealed when not in use to prevent reaction with atmospheric moisture and carbon dioxide.

Specification

Item	Specification
Appearance	White to grayish-white lumps or powder
Identification (IR)	Conforms
Assay (as CaO)	≥ 95.0% - 98.5%
Loss on Ignition	≤ 5.0%
Acid Insoluble Matter	≤ 1.0%
Particle Size (Mesh)	Customizable (e.g., -100, -200 mesh)

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