High Purity Spherical Lead Powder

Updated: 2026-07-21

Overview

High-purity spherical lead powder is a specialized form of lead characterized by its uniform spherical particle shape and minimal impurities. It is produced through advanced atomization or chemical processes to achieve high purity levels, typically exceeding 99.9%. This powder is widely used in industries requiring precise lead-based materials, such as battery manufacturing and radiation shielding. Due to its spherical morphology, the powder offers excellent flowability and packing density, making it ideal for applications where consistent particle distribution is critical. The high purity ensures minimal contamination, which is essential for performance in sensitive applications like lithium-ion battery anodes.

Physical and Chemical Properties

High-purity spherical lead powder exhibits the intrinsic properties of lead, including high density (11.34 g/cm³) and low melting point (327.5°C). The spherical shape of the particles enhances its handling and processing characteristics, such as improved flowability and reduced dust generation. The powder is insoluble in water but dissolves readily in nitric acid, forming lead nitrate. The uniform particle size distribution, typically ranging from 1 to 50 microns, ensures consistent performance in applications like conductive pastes and coatings. The high purity (>99.9%) minimizes the presence of oxides or other contaminants, which could affect electrical conductivity or chemical reactivity.

Main Applications

The primary use of high-purity spherical lead powder is in the production of lead-acid and lithium-ion battery anodes, where its uniform particle size and purity enhance energy density and cycle life. It is also employed in radiation shielding materials, such as lead aprons and barriers, due to lead's high atomic number and density. In metallurgy, the powder is used as an additive in alloys and solders to improve mechanical properties. Additionally, it serves as a raw material for conductive inks and pastes in electronics. The spherical shape ensures even dispersion, critical for consistent performance in these applications.

Safety and Storage

High-purity spherical lead powder is toxic if inhaled or ingested, requiring strict safety measures during handling. Workers must use personal protective equipment (PPE), including gloves, masks, and ventilation systems, to minimize exposure. The powder should be stored in a dry, cool environment, away from acids and oxidizers, to prevent reactions. Spills should be contained and cleaned up immediately using appropriate methods, such as vacuuming with HEPA filters. Proper disposal must comply with local regulations due to lead's environmental and health hazards. Regular monitoring of workplace air quality is recommended to ensure safe exposure levels.

B2B Procurement Guide

When procuring high-purity spherical lead powder, buyers should prioritize suppliers with verified quality certifications, such as ISO 9001. Key specifications to confirm include purity (≥99.9%), particle size distribution, and absence of contaminants. Requesting material safety data sheets (MSDS) and third-party test reports is advisable. Bulk purchases often attract discounts, but storage capacity and shelf life should be considered. Lead prices fluctuate with market conditions, so locking in contracts during stable periods can be cost-effective. Reliable suppliers should offer traceability and consistent batch-to-batch quality to ensure application performance.