Erlenmeyer flasks with spouts are versatile tools for pouring liquids, swirling solutions, and conducting titrations. This guide highlights reliable options favored by researchers and educators, focusing on borosilicate glass for chemical resistance and durable construction. The selections below balance capacity, clarity, and compatibility with standard labware, helping you choose flasks that fit routine lab workflows and classroom demonstrations.
| Product | Capacity | Material | Special Note |
|---|---|---|---|
| Corning Pyrex #4980-1L, 1000ml Narrow Mouth Erlenmeyer Flask | 1000 ml | Borosilicate glass | Includes rubber stopper |
| Corning Pyrex #4980-500, 500ml Erlenmeyer Flask | 500 ml | Borosilicate glass | Includes rubber stopper |
| XCD Erlenmeyer Flask, 250 ml | 250 ml | Borosilicate glass | 24/40 outer joint option |
| Karter Scientific 213G15, 2000 ml | 2000 ml | Borosilicate glass | Large capacity for bulk reactions |
| Karter Scientific 213G29, 500 ml | 500 ml | Borosilicate glass | Standard conical form with spout |
Corning Pyrex 1 L Narrow Mouth Erlenmeyer Flask
Capacity and clarity define this Corning Pyrex model. With a 1000 ml capacity and a narrow mouth, it supports controlled pouring and minimized splashes during stirring and swirling. Its 50 ml graduation intervals aid in quick measurement, which is useful for teaching demonstrations and routine lab tasks. An included rubber stopper helps seal to prevent evaporation when leaving samples unattended. The borosilicate glass resists typical lab chemicals, making it a dependable backbone for both experiments and classroom activities.
Corning Pyrex 500 ml Erlenmeyer Flask
This mid-size Corning flask pairs balance and practicality. The 500 ml capacity is a staple for routine liquid handling in teaching labs and research setups. Grads at 50 ml increments provide quick estimation while maintaining accuracy. Its rugged borosilicate construction stands up to frequent use in demonstrations and experiments, and the included stopper helps reduce contamination and evaporation during short-term testing.
XCD 250 ml Heavy-Wall Erlenmeyer With 24/40 Joint
Designed for compatibility with standard lab setups, this XCD Erlenmeyer features a 24/40 outer joint, enabling seamless integration with stoppers, adapters, and adapters in advanced glassware rigs. The 250 ml capacity makes it ideal for small-scale reactions, titrations, and teaching demonstrations. The heavy-wall borosilicate glass provides durability for repeated use, while maintaining clear visibility of contents and graduations for precise measurements.
Karter Scientific 2000 ml Narrow Mouth Erlenmeyer Flask
The Karter Scientific 2000 ml flask offers substantial capacity for larger reactions or sample consolidation, minimizing the need for multiple transfers. Graduations at 200 ml intervals support quick measurement even at higher volumes. With a sturdy 3.3 borosilicate composition, this flask provides chemical耐rance along with robust glass thickness for repeated classroom and lab use. The narrow mouth design helps reduce splashing and simplifies pouring during experiments.
Karter Scientific 500 ml Narrow Mouth Erlenmeyer Flask
This 500 ml Karter Scientific model blends size with precision. Ideal for teaching labs and general experiments, it features a narrow mouth to control pours and reduce splashes. The 16 oz capacity aligns with typical classroom experiments, while its 3.3 borosilicate glass ensures resistance to common solvents. Graduation marks support quick, on-the-fly measurements during demonstrations or simple synthesis tasks.
Karter Scientific Glass Erlenmeyer Set (50, 150, 250 ml)
This three-size set provides a compact starter collection for teaching labs and hobbyists. Each flask is made from high-quality 3.3 borosilicate glass with inert properties, ensuring stability across diverse reagents. The conical shape and narrow mouths help control pouring and mixing, while the printed graduations and large marking spots aid quick identification of volumes during dynamic demonstrations.
Buying Guide
Key purchase considerations
- Capacity needs: Choose a range that covers routine tasks (500–1000 ml) and larger reactions (2000 ml) for scalability.
- Glass quality: Look for borosilicate glass (3.3) for chemical resistance and thermal durability.
- Spout and mouth design: Narrow mouth helps control pouring; wider mouth can speed up pouring for larger volumes.
- Joint compatibility: If you plan to attach stoppers, adapters, or other glassware, a 24/40 joint can add versatility (as seen in XCD models).
- Graduations: Clear, easy-to-read graduations assist quick estimations during teaching and experiments.
- Durability: Heavy-wall construction offers improved resilience in high-use environments like classrooms and teaching labs.
- Cost vs. longevity: While prices vary, investing in durable borosilicate glass reduces replacement frequency in busy labs.
- Cleaning and compatibility: Ensure the flask is easy to clean and compatible with the solvents you commonly use.
- Set vs. single pieces: Sets offer value for beginners or classrooms; single flasks let you tailor a kit to specific experiments.
Comparison snapshot
- Large-capacity models (2000 ml) are ideal for bulk reactions but require more storage and careful handling.
- 500 ml and 1000 ml flasks balance usability with space efficiency for typical lab tasks and demonstrations.
- Joint-equipped flasks (24/40) increase modularity for advanced lab setups, while standard designs excel in straightforward pouring and mixing.