Tin Powder[2]

Updated: 2026-09-11

Overview

Tin powder, also known as metallic tin powder, is a finely divided form of tin used in various industrial applications. It is valued for its ductility, corrosion resistance, and low toxicity. The powder is typically grayish-white and is produced through processes like atomization or electrolytic deposition. Tin powder is widely used in industries such as electronics, metallurgy, and chemical manufacturing. Its primary role includes soldering, alloy production, and as a component in coatings and chemical reactions. The material's properties make it suitable for applications requiring fine metallic particles with consistent quality.

Physical and Chemical Properties

Tin powder exhibits a density of 7.31 g/cm³ and a melting point of 231.93°C, making it relatively easy to work with in molten states. It is insoluble in water but dissolves in acids, forming tin salts. The powder is stable under normal conditions but can oxidize over time when exposed to air. Key chemical properties include its ability to form alloys with other metals like copper and lead, enhancing mechanical strength and corrosion resistance. Tin powder is also non-toxic, making it safer to handle compared to other metal powders, though precautions are still necessary to avoid inhalation or skin contact.

Main Applications

Tin powder is extensively used in the electronics industry for soldering, where it forms part of solder alloys for joining components. It is also employed in coatings to provide corrosion resistance and aesthetic finishes. In metallurgy, tin powder is a key ingredient in bronze and pewter alloys. Additionally, tin powder serves as a reducing agent in chemical synthesis and is used in the production of tin-based chemicals. Its fine particle size and reactivity make it ideal for specialized applications such as conductive inks and 3D printing materials.

Safety and Storage

While tin powder is considered low toxicity, proper safety measures should be followed. Inhalation of fine particles can irritate the respiratory tract, and prolonged skin contact may cause dermatitis. Use protective gloves, masks, and ventilation when handling. Store tin powder in a cool, dry place, away from oxidizing agents and moisture. Sealed containers are recommended to prevent oxidation and contamination. Dispose of any spilled material carefully, avoiding environmental release.

B2B Procurement Guide

When procuring tin powder, verify the purity level (commonly 99% or higher) and particle size distribution, as these affect performance in specific applications. Packaging options include vacuum-sealed bags or drums, depending on quantity requirements. Consider suppliers with certifications like ISO 9001 to ensure quality consistency. Pricing varies based on purity, quantity, and market conditions, with bulk purchases often offering cost advantages. Request material safety data sheets (MSDS) and sample testing before large-scale procurement.