Description
Specifications Table
Product Name – Zinc chloride, 99.99%, (trace metal basis), anhydrous
Quantity/Pack Size – 5GR, 25GR
Form – Solid (powder/crystals)
Grade – 99.99% (trace metal basis)
Application – Catalysis, synthesis, analytical reagent
Product Overview
Zinc chloride, 99.99% (trace metal basis), anhydrous is a high-purity inorganic compound designed for demanding laboratory applications where trace metal contamination must be minimized. This anhydrous form ensures negligible water content, making it suitable for moisture-sensitive reactions and precise analytical work. The 99.99% purity level guarantees consistent performance in catalytic processes, organic synthesis, and as a Lewis acid in chemical transformations. Its fine crystalline structure allows for rapid dissolution in polar solvents, facilitating efficient reaction kinetics. The trace metal basis specification ensures minimal interference from metallic impurities, which is critical for high-accuracy experiments. This product is packaged under inert conditions to preserve its anhydrous state and prevent hydrolysis during storage. Its versatility extends to use as a flux in metallurgical applications and as a dehydrating agent in specialized protocols. The absence of hydrates eliminates variability in stoichiometric calculations, providing researchers with reliable batch-to-batch consistency.
FAQs
1. What is the difference between anhydrous and hydrated zinc chloride?
Anhydrous zinc chloride contains no water molecules in its crystal structure, while hydrated forms (like ZnCl₂·2H₂O) include bound water. The anhydrous version is preferred for reactions where moisture could interfere, such as in certain organic syntheses or as a drying agent.
2. Can this product be used as a catalyst in Friedel-Crafts reactions?
Yes, the high-purity 99.99% anhydrous zinc chloride is effective as a Lewis acid catalyst in Friedel-Crafts alkylation and acylation reactions due to its strong electron-pair accepting ability and minimal impurity interference.
3. How should I store anhydrous zinc chloride to maintain its purity?
Store in a tightly sealed container under an inert atmosphere (e.g., nitrogen or argon) in a cool, dry place. Exposure to ambient humidity can lead to hydration, compromising its anhydrous properties.
4. Is this zinc chloride compatible with glassware, or does it require special containers?
While it can be handled in standard borosilicate glassware, prolonged storage is best done in airtight containers with PTFE-lined caps to prevent moisture absorption and potential corrosion of metal closures.
5. What alternatives exist if I need a lower-purity zinc chloride for general lab use?
For less critical applications, zinc chloride with 98% or 95% purity (often hydrated) is available. These grades are cost-effective but may introduce trace impurities that could affect sensitive reactions.
