Description
Specifications Table
Product Name – Dimethylaluminium chloride, 0.9M solution in heptane, AcroSeal®
Quantity/Pack Size – 100ML, 800ML
Form – Liquid solution
Grade – Laboratory reagent grade
Application – Catalyst in organic synthesis, polymerization reactions
Product Overview
Dimethylaluminium chloride (0.9M in heptane) is a highly reactive organoaluminium compound supplied in an inert heptane solvent to ensure stability and ease of handling. The AcroSeal® packaging guarantees airtight containment, preventing moisture contamination and preserving the reagent’s purity during storage and use. This solution is specifically formulated to deliver precise molar concentration, eliminating the need for dilution in most applications. The heptane solvent provides an ideal medium for reactions requiring non-polar conditions, while the dimethylaluminium chloride acts as a strong Lewis acid and alkylating agent. Its low volatility and controlled reactivity make it suitable for sensitive synthetic procedures where stoichiometric accuracy is critical. The reagent is compatible with standard Schlenk techniques and glove box environments, ensuring seamless integration into existing lab workflows. Each batch undergoes rigorous quality testing to confirm concentration and absence of impurities, providing researchers with reliable, reproducible results.
FAQs
1. What precautions should be taken when handling dimethylaluminium chloride solution?
This reagent is pyrophoric and reacts violently with water or air. Always handle under inert gas (argon/nitrogen) using air-free techniques. Wear flame-resistant lab coats, chemically resistant gloves, and safety goggles. Work in a properly ventilated fume hood equipped with fire suppression.
2. Is this solution compatible with glass reaction vessels?
While compatible with most borosilicate glass, prolonged contact may etch the surface. For extended reactions, consider using PTFE-lined or stainless steel equipment. Always pre-dry glassware at 120°C overnight before use to remove adsorbed moisture.
3. How does the heptane solvent affect reaction outcomes compared to other solvents?
Heptane’s non-polar nature minimizes side reactions with polar substrates while maintaining the reagent’s solubility. It provides a neutral medium that doesn’t compete with substrates for coordination sites on aluminium. For polar reactions, alternative solvents like toluene may be more suitable but require separate stability testing.
4. What’s the typical shelf life when stored unopened?
When stored unopened in its original AcroSeal® packaging at 2-8°C, the solution maintains its specified concentration for 12 months from the date of manufacture. Avoid temperature fluctuations and store away from oxidizing agents or acids to prevent degradation.
5. Can this be used as a direct replacement for trimethylaluminium in synthesis?
While both are organoaluminium reagents, dimethylaluminium chloride offers different reactivity due to the chloride ligand. It’s generally less basic than trimethylaluminium but provides better control in halogen-sensitive reactions. Reaction conditions may require optimization when substituting between these reagents.
