Description

Dibasic Lead Phthalate is a specialized lead salt of phthalic acid, widely recognized for its role as a high-performance heat and light stabilizer in polymer systems. This compound is critical for enhancing the durability and longevity of materials exposed to harsh environmental conditions. It is primarily utilized by manufacturers in the plastics, wire and cable, and specialty coatings industries seeking reliable stabilization for PVC and other halogenated polymers.

Application

• Primary heat stabilizer for flexible and semi-rigid polyvinyl chloride (PVC) compounds.
• Critical component in wire and cable insulation formulations for superior electrical properties and long-term thermal aging resistance.
• Stabilizer for PVC calendered films and sheets requiring clarity and weatherability.
• Used in specialty coatings and plastisols where low volatility and compatibility are essential.
• Imparts excellent sulfur staining resistance in applications where contact with sulfur-containing compounds is possible.
• Functions as a lubricant and processing aid within PVC formulations, improving melt flow and surface finish.

Basic Information

Product Name	Dibasic Lead Phthalate
CAS No.	69011-06-9
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Lead Phthalate, Dibasic; Dibasic Lead Phthalate Stabilizer; DLP; Lead Phthalate (dibasic); Phthalic Acid, Lead Salt (1:?); Stabilizer DLP; PVC Heat Stabilizer DLP; Tribasic Lead Phthalate (common industry misnomer)
EINECS	Contact for details

Quality Control

Our Dibasic Lead Phthalate is manufactured under strict quality management protocols to ensure batch-to-batch consistency and performance reliability. Each lot undergoes rigorous analytical testing, including assay, moisture content, and particle size distribution analysis, to meet defined industrial specifications. A Certificate of Analysis (COA) documenting these results is provided with every shipment to support your quality assurance processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials. Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed when not in use to prevent moisture absorption and caking. Recommended storage temperature is 15-25°C.

Specification

Item	Specification
Appearance	White to yellowish powder
Identification (IR)	Conforms
Assay (as PbO)	≥ 80.0 %
Moisture Content	≤ 1.0 %
Sieve Residue (325 mesh)	≤ 1.0 %
Phthalic Acid Content	Contact for details

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