Abstract Solder alloys are tin (Sn)-based metallic materials widely used in electronics assembly, automotive radiator sealing, and other applications. The most common formulation is tin-lead (Sn-Pb) solder (e.g., Sn63/Pb37, melting point 183°C), valued for its low melting point, excellent wettability, and electrical conductivity (resistivity ~12.6 μΩ·cm). Lead-free solders (e.g., Sn-Ag-Cu systems) incorporate silver (Ag)…
Abstract Selenium (Se), a nonmetallic element, exhibits significant differences in physicochemical properties and applications depending on its chemical forms (elemental selenium, selenides, selenates, etc.). Toxicity varies drastically among forms—selenite (SeO₃²⁻) is 10 times more toxic than selenides, requiring strict intake…
Shaoguan Yuntian Metals Abstract Among precious metal compounds, rhodium acetate (Rh(OAc)₃) may not be a household name, yet it serves as an indispensable “core player” in industries like chemicals, pharmaceuticals, and advanced materials. Whether in high-end organic synthesis or fine chemical production, rhodium acetate stands out as one…
Shaoguan Yuntian Metals Abstract In the fiberglass industry, it is well-known that platinum-rhodium (Pt-Rh) alloys are essential for bushing plates in glass fiber production. However, few realize that these precious metals gradually volatilize, detach, and become adsorbed by surrounding refractory castables during high-temperature operations. When…
With the surging demand for AI and electronic devices, indium resources are becoming increasingly scarce. Recycling indium from discarded electronics, photovoltaic (PV) panels, and industrial waste has emerged as a crucial solution—not only reducing mining costs but also advancing the future of green technology.…
