A 50 mL Erlenmeyer flask is a compact choice for small-volume mixing, sample handling, and classroom lab work. For a 12-flask supply, consider Karter Scientific’s pack; for one flask, its single-unit option is more suitable. Utile and LABINVO offer six-flask sets, while BOMEX may suit buyers seeking a mixed-size set—but its listing details need checking before purchase.
| Product | Pack details | Standout listed feature |
|---|---|---|
| Karter Scientific 213G18 | 12 flasks | 50 mL capacity; approximate 87 mm height |
| Karter Scientific 213G26 | Single flask | 50 mL capacity; approximate 77 mm height |
| BOMEX | Listing title says 4-pack | Features describe a 50, 100, and 250 mL set |
| Utile 4016.0050.6 | 6 flasks | 3.3 borosilicate glass; large marking spot |
| LABINVO IN-EFN50 | 6 flasks | Approximate 85 mm height; stated tolerance |
Karter Scientific 50 mL Flask Pack of 12
This Karter Scientific option is best for labs, teaching spaces, or other buyers who need multiple identical 50 mL flasks. The listing specifies borosilicate glass, a thick wall, and a heavy-duty rim. Capacity is 50 mL, and graduations are listed at 10 mL and from 20 mL to 50 mL. The approximate height is 87 mm.
Choose this if a 12-piece supply is useful and the listed graduation marks meet your needs. Its narrow mouth is a defining design feature. The listing does not provide detailed tolerances for the graduations, so use them as markings rather than assuming precision measurement.
Karter Scientific Single 50 mL Flask
This single flask is best for buyers who need one replacement or want to add a small vessel without purchasing a larger pack. It shares the listed narrow-mouth, borosilicate-glass construction, thick wall, and heavy-duty rim of the brand’s 12-pack option. The capacity is 50 mL, with graduations at 10 mL and from 20 mL to 50 mL.
The approximate height is 77 mm, compared with about 87 mm for the 12-pack listing. Check the height if storage or equipment clearance matters. The product information does not state a graduation tolerance, so do not rely on the markings as a substitute for calibrated volumetric glassware.
BOMEX Graduated Flask Set
BOMEX may be best for buyers who want flasks in more than one capacity. The product title calls this a 50 mL graduated flask four-pack, but the feature details describe a value set containing 50 mL, 100 mL, and 250 mL flasks. Those details do not clearly establish the exact contents or number of each size, so verify the current listing before ordering.
The listed material is borosilicate glass, described as heat resistant, chemically durable, and low in thermal expansion. A caution in the product details says the stopper is soft and needs to be pushed firmly into place. Avoid this option if you require a confirmed pack count or all flasks to be 50 mL without first checking the listing.
Utile Six-Piece 50 mL Flask Set
Utile is best for buyers who want six matching 50 mL flasks with visible identification space. The listing specifies 3.3 borosilicate glass, uniform wall thickness, a conical shape, narrow mouths, and printed graduations. It also calls out an extra-large marking spot, which can help distinguish vessels in shared lab or classroom settings.
Choose this set if having six flasks of the same listed capacity is more useful than buying a single unit. The supplied details do not state a height or graduation tolerance. If dimensions or measurement precision are important, confirm those specifications before selecting it.
LABINVO Six 50 mL Flasks
This LABINVO set is best for buyers who need six compact flasks and want the stated dimensions and capacity tolerance. The listing describes six 50 mL narrow-mouth graduated conical flasks made from 3.3 borosilicate glass, with marking spots. Height is listed as approximately 85 mm, and the stated tolerance is approximately plus or minus 5%.
The stated tolerance is a useful comparison point, but it means the listed capacity should not be treated as exact to a fine measurement standard. Choose this if a six-piece set and approximate size information are priorities. Confirm whether the stated tolerance suits your intended work.
Buying Guide: How to Choose a 50 mL Erlenmeyer Flask
Do you need one flask or a set?
Start with quantity. A single flask is appropriate for a replacement or occasional task, while packs of six or twelve can be more practical for classrooms and labs that use several vessels. Compare the actual pack contents, especially when the title and feature details differ, as they do in the BOMEX listing.
Should you compare material and construction?
Several listings specify borosilicate glass, and some provide additional details such as thick walls, a heavy-duty rim, or 3.3 borosilicate glass. Use only the construction details stated for each product when comparing options. The BOMEX description also notes high temperature resistance and chemical durability, but suitability depends on the specific substances and conditions involved.
How important are graduations and dimensions?
Graduation markings support quick visual estimates, but the listings do not establish that every flask is calibrated for precise measurement. LABINVO states an approximate tolerance of plus or minus 5%; the other products provide no comparable tolerance in the supplied details. Compare listed heights if shelf space or apparatus clearance matters, and remember that approximate dimensions may vary.
Frequently Asked Questions
What is a 50 mL Erlenmeyer flask used for?
It is a small conical flask intended for handling small liquid volumes. The product listings emphasize narrow mouths, graduations, and laboratory or classroom use.
Are the graduations precise measurements?
Not necessarily. Most supplied product details list graduations without stating their accuracy. LABINVO lists an approximate plus-or-minus-5% tolerance, so check requirements before using any flask for precise volume measurement.
Which option is best for buying one flask?
The Karter Scientific single-flask listing is the clearest choice for a one-unit purchase. It specifies 50 mL capacity, graduations, and an approximate 77 mm height.
Which options provide multiple matching 50 mL flasks?
Karter Scientific lists a 12-pack, while Utile and LABINVO each list six 50 mL flasks. Check the pack description before ordering to confirm it fits your quantity needs.
What should I verify before ordering the BOMEX set?
Verify the included capacities and pack count. Its title says four 50 mL flasks, while the features describe a set with 50 mL, 100 mL, and 250 mL flasks.