Erlenmeyer Flask[2]
Overview
The Erlenmeyer Flask, named after German chemist Emil Erlenmeyer, is a staple in laboratories for its versatility. Its conical shape allows for secure swirling without spillage, while the narrow neck facilitates stoppering and reduces evaporation. Commonly made of heat-resistant borosilicate glass, it is also available in plastic for disposable use. Modern variants include baffled flasks for enhanced aeration in cell cultures and graduated markings for approximate volume measurements. Standard sizes range from 50 mL to 5,000 mL, catering to diverse applications from chemical titrations to microbial fermentation.
Product Features
The flask’s design prioritizes functionality: the conical body ensures efficient mixing, while the flat base provides stability on benches or hot plates. Some models feature vented caps or sidearms for gas exchange in biological applications. Borosilicate versions withstand temperatures up to 400°C, making them suitable for autoclaving. Plastic flasks, often polystyrene, are lightweight and shatterproof but limited to low-heat uses. Etched graduations and writable surfaces add practicality for documentation.
Main Uses
In chemistry, Erlenmeyer flasks are used for titrations, recrystallization, and reagent storage. Their shape minimizes splashing during stirring. In biology, they serve as culture vessels for bacteria or yeast, with baffled designs improving oxygen transfer. Industrial applications include small-scale chemical synthesis and quality control testing. Educational labs rely on them for basic experiments due to their durability and ease of handling.
Culture and Development
Introduced in 1861, the flask’s design has remained largely unchanged, a testament to its effectiveness. Innovations include disposable plastic versions for sterile workflows and specialized coatings to reduce cell adhesion in biotech. Its iconic shape has made it a symbol of laboratory science, frequently depicted in media and educational materials. The shift toward sustainable labware has spurred reusable glass flasks with extended lifespans.
B2B Procurement Guide
Bulk buyers should prioritize suppliers with ISO-certified manufacturing for consistency. Glass flasks require inspection for defects like air bubbles or uneven thickness. Plastic variants should be USP Class VI certified for biocompatibility. For microbial cultures, opt for flasks with vented caps or integrated filters. Pricing scales with volume and material—glass flasks cost approximately $5–$50 each, while plastic versions range from $2–$20. Lead times vary by customization (e.g., logos, extra graduations).
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