Description

Litharge CAS NO 79120-33-5 is a high-purity, yellow to reddish-yellow crystalline powder consisting primarily of lead(II) oxide (PbO). This inorganic compound is a critical industrial material valued for its chemical reactivity and physical properties in high-temperature applications. It serves as an essential precursor and additive for manufacturers in the ceramics, glass, battery, and chemical synthesis industries, where consistent quality and reliable supply are paramount.

Application

• Ceramics and Glass Manufacturing: A key fluxing agent to lower melting temperatures and improve the optical properties and durability of glass, crystal, and glazes.
• Lead-Acid Battery Production: Used in the formation of battery plates and as a component in the paste for positive plates.
• Chemical Synthesis: Acts as a precursor for the production of other lead compounds, such as lead stabilizers for PVC and pigments like red lead (Pb3O4).
• Pigments and Dyes: Employed in the formulation of specific yellow and orange pigments for industrial coatings and artists' materials.
• Lubricant and Grease Additive: Functions as a high-pressure additive in specialized lubricants and greases.
• Rubber and Plastic Vulcanization: Serves as an accelerator in the vulcanization process for certain rubber and plastic compounds.
• Laboratory and Analytical Reagent: Used in analytical chemistry and as a laboratory reagent for various inorganic preparations.

Basic Information

Product Name	Litharge
CAS No.	79120-33-5
Molecular Formula	PbO
Molecular Weight	223.20 g/mol
Synonyms	Lead(II) oxide; Lead monoxide; Yellow lead oxide; Plumbous oxide; Massicot; Lead oxide yellow; Lithargyrum; C.I. 77577
EINECS	215-267-0

Quality Control

Our Litharge is produced under stringent quality management protocols to ensure batch-to-batch consistency and compliance with relevant industrial specifications. Quality is verified through rigorous analytical testing, including assays for lead oxide content and limits for key impurities. A Certificate of Analysis (COA) detailing purity, physical characteristics, and trace metal content is provided with every shipment to guarantee material integrity for your processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong acids and reducing agents. Keep container tightly sealed when not in use to minimize exposure to atmospheric carbon dioxide and moisture.

Specification

Item	Specification
Appearance	Yellow to reddish-yellow powder
Identification (IR)	Conforms
Assay (as PbO)	≥ 99.0 %
Loss on Drying	≤ 0.5 %
Acetic Acid Insoluble Matter	≤ 0.1 %
Iron (Fe)	≤ 50 ppm
Copper (Cu)	≤ 10 ppm
Particle Size (Typical)	Contact for details

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