Glassco Heavy Duty Erlenmeyer Flask — Narrow Mouth Borosilicate 3.3
The Glassco heavy duty narrow mouth Erlenmeyer flask is manufactured from premium borosilicate 3.3 glass — the highest specification borosilicate glass for laboratory use — providing significantly enhanced thermal resistance, chemical durability, and mechanical strength compared to standard borosilicate conical flasks. Designed for demanding laboratory applications where standard glassware may not provide adequate robustness, these heavy duty flasks are the appropriate choice for repeated autoclaving cycles, aggressive reagent use, high-temperature heating, and any application where maximum glass durability is a critical requirement.
Available in capacities from 50mL to 2000mL, these heavy duty flasks are supplied from Glassco’s European warehouse in the Netherlands for fast delivery across Ireland.
Key Features
Borosilicate 3.3 Glass — Premium Grade
Borosilicate 3.3 glass represents the premium specification for laboratory borosilicate glass, offering superior thermal shock resistance, chemical inertness to a wider range of reagents, and enhanced mechanical strength compared to standard borosilicate formulations. These properties make borosilicate 3.3 the material of choice for demanding laboratory applications where glass longevity and reliability are critical.
Heavy Duty Construction
The heavy duty wall construction provides increased mechanical strength and resistance to breakage during normal laboratory handling — extending flask service life in high-use laboratory environments where frequent handling, cleaning, and sterilisation cycles are routine.
Autoclavable
The borosilicate 3.3 glass composition and heavy duty construction supports repeated autoclaving at standard sterilisation temperatures, making these flasks appropriate for microbiological, cell culture, and pharmaceutical laboratory applications requiring steam sterilisation.
Narrow Mouth Design
The narrow mouth opening reduces evaporation during mixing, incubation, and heating applications, and is compatible with standard rubber and plastic stoppers for closed-system use.
Chemical Resistance
Borosilicate 3.3 glass provides excellent resistance to most acids, alkalis, and organic solvents — including aggressive reagents that may attack lower-grade glass formulations.
Technical Specifications
| Parameter | Specification |
|---|---|
| Brand | Glassco |
| Type | Erlenmeyer Flask Narrow Mouth Heavy Duty |
| Glass Type | Borosilicate 3.3 (premium grade) |
| Construction | Heavy duty — enhanced wall thickness |
| Mouth Type | Narrow mouth — stopper compatible |
| Autoclavable | Yes |
| Available Capacities | 50mL, 100mL, 250mL, 500mL, 1000mL, 2000mL |
| Supply Origin | Glassco European Warehouse, Netherlands |
Capacity and Stock Reference
| Capacity | Item Code |
|---|---|
| 50mL | EU231.237.02 |
| 100mL | EU231.237.03 |
| 250mL | EU231.237.05 |
| 500mL | EU231.237.07 |
| 1000mL | EU231.237.08 |
| 2000mL | EU231.237.09 |
Applications
- Repeated autoclaving — heavy duty construction withstands multiple sterilisation cycles for microbiological and cell culture workflows
- Aggressive chemical applications — enhanced chemical resistance for use with aggressive acids, alkalis, and solvents
- High-temperature heating — superior thermal shock resistance for demanding heating and boiling applications
- Pharmaceutical manufacturing support — durable glassware for pharmaceutical process development and pilot-scale preparation
- High-use laboratory environments — extended service life where frequent handling and cleaning reduce the working life of standard flasks
Standard vs Heavy Duty — Which Flask Do You Need?
The standard narrow mouth Erlenmeyer flask is appropriate for the majority of general laboratory applications including titration, mixing, culture growth, and routine solution preparation. The heavy duty borosilicate 3.3 version is recommended for applications involving repeated autoclaving, aggressive reagents, high-temperature heating, or environments where maximum glass durability and longevity are a priority.
Availability in Ireland
Available from Varen Scientific — Ireland’s authorised distributor for Glassco laboratory glassware, supplied from the European warehouse in the Netherlands. To request a quote use the Request a Quote button above or contact our team directly.
