Description

Calcium Hydroxide CAS NO 12001-27-3 is a versatile inorganic compound, also known as slaked lime, widely recognized for its strong alkaline properties. It serves as a critical reagent and processing aid across numerous industrial sectors, valued for its cost-effectiveness and reactivity. Key industries that rely on this material include water treatment, construction, chemical manufacturing, and food processing, where it is essential for pH adjustment, purification, and synthesis.

Application

• Water Treatment & Flocculation: Used for pH correction, softening, and as a coagulant aid in municipal and industrial wastewater treatment.
• Construction (Mortar & Plaster): A key component in traditional building materials, providing workability and contributing to the carbonation hardening process.
• Chemical Manufacturing & Neutralization: Acts as a precursor for other calcium compounds and is employed to neutralize acidic waste streams.
• Food Industry (FCC Grade): Used as a processing aid, pH regulator, and firming agent in products like pickles, sugar, and drinking water.
• Flue Gas Desulfurization (FGD): An effective sorbent for removing sulfur dioxide (SO₂) from exhaust gases in power plants and industrial boilers.
• Soil Stabilization & Agriculture: Applied to amend acidic soils, improving pH and providing a source of calcium for plant nutrition.
• Pulp & Paper Production: Utilized in the kraft process for pulp digestion and in the recausticizing cycle.
• Leather Tanning: Employed in the dehairing and liming stages to prepare hides.

Basic Information

Product Name	Calcium Hydroxide
CAS No.	12001-27-3
Molecular Formula	Ca(OH)₂
Molecular Weight	74.09 g/mol
Synonyms	Slaked Lime; Hydrated Lime; Calcium Hydrate; Lime Hydrate; Pickling Lime; Caustic Lime; Portlandite; Calcium Dihydroxide
EINECS	234-595-9

Quality Control

Our Calcium Hydroxide is produced under strict quality management systems 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. Each batch is accompanied by a comprehensive Certificate of Analysis (COA) detailing key parameters such as assay, impurity levels, and physical properties. Certificates of compliance for relevant regulatory frameworks (e.g., REACH) are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed after opening to prevent absorption of atmospheric moisture and carbon dioxide, which can lead to caking and reduced reactivity. Keep away from incompatible materials such as strong acids.

Specification

Item	Specification
Appearance	White powder
Identification (IR)	Conforms
Assay (as Ca(OH)₂)	≥ 95.0 %
Loss on Drying	≤ 2.0 %
Acid Insoluble Substances	≤ 0.5 %
Carbonate (as CaCO₃)	≤ 3.0 %
Heavy Metals (as Pb)	≤ 20 ppm
Mesh Size (Typical)	200 mesh

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