PYREX 50mL Narrow Mouth Erlenmeyer Flasks with Heavy Duty Rim
- 50 ml capacity, 10 ml graduations
- Borosilicate glass, round bottom
- Heavy duty rim to reduce chipping
- 2.01 x 2.01 x 3.07 inches
- 0.05 kg item weight, sold each
Updated 2 days ago · Based on the Amazon listing and published specifications, not hands-on testing.
A small narrow-mouth Erlenmeyer flask with a heavy duty rim and uniform wall thickness, sold singly. Texas buyers need a laboratory apparatus permit before the order ships.
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ASIN: B004XR5TO8Model: 4980-50(Flask)Category: Erlenmeyer Flasks
Overview
A student or lab user mixing small samples gets a Pyrex narrow mouth flask with a conical body and a rim built to reduce chipping. Uniform wall thickness balances mechanical strength with resistance to thermal shock.
The reason to buy is the sturdy rim and even walls in a small borosilicate flask for swirling and storing samples. The limitation is a permit rule: the description says Texas shipments need a laboratory apparatus permit verified by the seller.
Who it's for
Teaching and small research benches that use small flasks for mixing and holding samples. Texas addresses must supply a permit after purchase, and a wide opening calls for a different flask style.
Pros and cons
- Heavy duty rim resists chipping
- Uniform wall thickness
- Small bench footprint
- 10 ml graduation steps
- Texas permit required
Performance notes
Even wall thickness lets the glass handle thermal shock without cracking at the thin spots, and the heavy rim guards the edge when handled. The graduations give a rough volume.
Specifications
| Brand | Pyrex |
|---|---|
| Model | 4980-50(Flask) |
| Dimensions & fit | |
| Dimensions D x W x H | 2.01 inches deep x 2.01 inches wide x 3.07 inches tall |
| Item weight | 0.05 kg |
| Height | 78mm |
| Capacity & performance | |
| Capacity | 50 ml |
| Construction & materials | |
| Material | Borosilicate Glass |
| Other details | |
| Bottom shape | Round |
| Graduations | 10 ml |
| Part number | 4980-50CNEa |
| Number of items | 1 |
Frequently asked questions
How do I get this Pyrex flask shipped to Texas?
The description says a Precursor Chemical/Laboratory Apparatus NAR-120 permit is needed. The seller emails after purchase to verify it, and an invalid permit leads to cancellation and refund.
Is the 4980-50 a narrow mouth or wide mouth flask?
Narrow mouth, per the title.
How accurate are the graduations?
The listing gives a 10 ml interval but no tolerance, so treat them as approximate.