Description
The Amber Erlenmeyer Conical Flask, Narrow Mouth, with Hollow Glass Stopper from Osmosis Scientific is engineered for reliable mixing, heating, titration, and handling of chemical solutions in laboratory environments. Made from premium Boro 3.3 borosilicate glass, this flask delivers outstanding thermal shock resistance and chemical durability — making it ideal for daily analytical, research, and industrial workflows.
Its narrow mouth design reduces spillage during swirling and makes it compatible with hollow glass stoppers that provide secure closure for sample containment and storage. The amber glass exterior protects light-sensitive reagents from the harmful effects of UV and visible light, preserving stability during preparation and experimental use.
Available in a range of capacities from 25 ml up to 500 ml, this conical flask supports a variety of laboratory applications — from microscale reactions and volumetric mixing to temperature-controlled experiments and solution preparation. The durable white enamel graduations make it easy to estimate volumes, improving workflow efficiency during routine lab operations.
The robust borosilicate glass construction withstands repeated sterilization and cleaning cycles, ensuring long-lasting performance. Whether used for quantitative analysis, culture work, or general reagent handling, this amber narrow mouth Erlenmeyer flask delivers dependable performance, protection, and precision for laboratory professional
| Capacity (mL) | Interchangeable Joint | Pack of | SKU | Enquiry |
|---|---|---|---|---|
| 25 | 14/23 | 2 | AEF-0025-1423 | Enquire Now |
| 50 | 19/26 | 2 | AEF-0050-1926 | Enquire Now |
| 100 | 24/29 | 2 | AEF-0100-2429 | Enquire Now |
| 250 | 24/29 | 2 | AEF-0250-2429 | Enquire Now |
| 500 | 24/29 | 2 | AEF-0500-2429 | Enquire Now |
Frequently Asked Questions (FAQs)
Amber glass filters UV and most visible light, protecting photosensitive reagents, vitamins, dyes, and halogenated or peroxide‑forming solvents from degradation during storage and handling.
The graduations are marked as “Approximate Volume” (Approx. Vol.). They are intended for estimation; for precise analytical measurements, a volumetric flask or pipette should be used.
These numbers refer to the Standard Taper (ST) ground glass joint size. The first number is the diameter (24mm) and the second is the length of the ground surface (29mm or 40mm).
Yes, because they are made of Boro 3.3, they are designed to withstand high temperatures and thermal shock, making them suitable for heating on hot plates or over Bunsen burners.
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