Description
Specifications Table
Product Name – Bismuth powder, -200 mesh, 99.999% (metals basis)
Quantity/Pack Size – 5g, 25g, 100g
Form – Powder
Grade – 99.999% (metals basis)
Application – Lab-grade synthesis, alloy production, research
Product Overview
This 99.999% pure bismuth powder features a -200 mesh particle size, ensuring exceptional uniformity and reactivity for demanding laboratory applications. The ultra-high purity (metals basis) eliminates trace contaminants that could interfere with sensitive experiments, making it ideal for precision work where consistency is critical. The fine powder form allows for easy dispersion and homogeneous mixing in solutions or composites. Bismuth’s unique properties—including its low toxicity, high density, and diamagnetic characteristics—make this grade particularly valuable for specialized applications. The powder undergoes rigorous quality control to maintain its stated purity level, with each batch verified through spectroscopic analysis. Packaged in inert conditions to prevent oxidation, it arrives ready for immediate use without requiring additional purification steps. The -200 mesh specification guarantees particles pass through a 74-micron sieve, providing optimal surface area for reactions while minimizing dusting during handling.
FAQs
1. What is the significance of the -200 mesh specification?
The -200 mesh indicates all particles pass through a 74-micron sieve, ensuring fine uniformity for consistent reaction rates and even distribution in mixtures. This particle size is critical for applications requiring high surface area without excessive dust formation.
2. How does the 99.999% purity compare to standard lab grades?
This 99.999% (5N) purity exceeds typical 99.9% or 99.99% grades by reducing trace metallic impurities to parts-per-million levels, which is essential for experiments sensitive to contamination like semiconductor research or high-purity alloy development.
3. Can this powder be used directly for alloy preparation?
Yes, the fine particle size and high purity make it suitable for direct use in alloy preparation without pre-treatment, though proper safety measures should be followed during handling due to the powder’s potential inhalation risk.
4. What storage conditions are recommended to maintain purity?
Store in a tightly sealed container under inert gas (argon/nitrogen) at room temperature, away from moisture and oxidizing agents. Avoid prolonged exposure to air to prevent surface oxidation that could affect the metal’s properties.
5. Are there any handling precautions specific to this particle size?
The -200 mesh size creates fine dust that requires handling in a fume hood with proper PPE (gloves, respirator) to prevent inhalation. Use anti-static tools to minimize dust dispersion during weighing or transfer.
