Specifications Table

Product Name – Zinc, granules (40 mesh) BAKER ANALYZED™ ACS reagent
Quantity/Pack Size – 500 g
Form – Granules (40 mesh)
Grade – ACS Reagent
Application – Analytical chemistry, gravimetric analysis, redox reactions

Product Overview

This BAKER ANALYZED™ ACS reagent-grade zinc granules (40 mesh) deliver exceptional purity and uniformity for demanding laboratory applications. The 40 mesh granulation ensures consistent particle size distribution, optimizing reaction kinetics and reproducibility in analytical procedures. As an ACS reagent, this zinc meets rigorous American Chemical Society standards for heavy metal impurities, loss on drying, and assay purity (minimum 99.5%). The granules’ high surface area facilitates rapid dissolution in acidic solutions while maintaining stability in dry storage conditions. The product undergoes stringent quality control testing, including ICP-OES analysis for trace metal contaminants, ensuring reliable performance in sensitive analytical techniques. The inert packaging with desiccant protection preserves the material’s reactive properties during extended storage periods. This zinc formulation is particularly valued for its low iron and lead content, which are critical for applications requiring minimal interference from metallic impurities. The granules’ uniform morphology prevents channeling in packed columns, making them suitable for specialized applications in gas purification systems and hydrogen generation setups.

FAQs

1. What is the typical impurity profile for these ACS-grade zinc granules?

The product meets ACS specifications with maximum allowable impurities of 0.005% lead, 0.003% iron, 0.005% cadmium, and 0.01% total non-volatile matter, verified through atomic absorption spectroscopy.

2. How does the 40 mesh granulation compare to finer zinc powders for reaction rates?

The 40 mesh granules offer a balanced surface area that provides faster reaction kinetics than coarser granules while being easier to handle and less prone to oxidation than finer powders, making them ideal for controlled reaction environments.

3. Are these zinc granules compatible with standard laboratory glassware?

Yes, the granules can be safely used with borosilicate glassware, though we recommend using PTFE-coated magnetic stirrers when prolonged agitation is required to prevent potential metal contamination from glass abrasion.

4. What storage conditions maximize the shelf life of these zinc granules?

Store in the original airtight container with desiccant at 15-25°C, protected from moisture and direct sunlight; under these conditions, the product maintains its specified purity for at least 36 months from the date of manufacture.

5. Can these granules be used in electrochemical applications?

While primarily designed for chemical analysis, the high purity makes them suitable for reference electrodes and certain electrochemical cells, though specialized zinc formulations may offer better performance for dedicated electrochemical applications.