Erlenmeyer Flasks Singapore: The Complete 2026 Buying Guide

Published: August 14, 2026 | By JW RESEARCH SUPPLY | Category: Lab Glassware

The Erlenmeyer flask — also called a conical flask — is one of the most recognisable and most-used pieces of glassware in any laboratory. Its wide, flat base keeps it stable during mixing, while its tapered neck reduces evaporation and stops liquids from splashing out when you swirl. Whether you are running titrations, preparing culture media, or simply storing reagents, the right flask makes the work safer and more accurate.

At JW RESEARCH SUPPLY, we supply Singapore laboratories with high-quality Erlenmeyer flasks in bulk. This guide covers the flask types, glass materials, capacity options, and how to match them to your workflow.

Types of Erlenmeyer Flasks

Not all conical flasks are the same. The neck style and any side ports determine how the flask performs:

Narrow-Mouth Flasks — The classic design with a small neck opening. Reduces evaporation and contamination, ideal for titrations, reagent storage, and aseptic work with a stopper or foil cap.
Wide-Mouth Flasks — A larger opening that makes it easy to add powders, solids, and large magnetic stir bars. Preferred for media preparation and general mixing.
Filtering Flasks (with side arm) — A heavy-walled flask with a side tubulation for connecting to a vacuum source. Used with a Büchner funnel or filter holder for vacuum filtration.
Baffled / Vented Flasks — Culture flasks with internal baffles or a vented cap to improve aeration and gas exchange for microbial and cell culture.

💡 Quick Rule: Use narrow-mouth borosilicate flasks for titration and aseptic work, wide-mouth flasks for media prep, and a heavy-walled filtering flask with side arm for vacuum filtration.

Erlenmeyer Flask Specifications

The table below summarises the standard flask options JWRESEARCH stocks for Singapore labs:

Flask Type	Capacity Range	Material	Graduations	Typical Application
Narrow-Mouth	25 – 5000 mL	Borosilicate 3.3 / Soda-lime	Printed (approx.)	Titration, reagent mixing, storage
Wide-Mouth	50 – 5000 mL	Borosilicate 3.3	Printed (approx.)	Media preparation, powder/solid mixing
Filtering (side arm)	100 – 2000 mL	Heavy-wall borosilicate	Printed (approx.)	Vacuum filtration with Büchner funnel
Baffled Culture	125 – 2000 mL	Borosilicate 3.3	Printed (approx.)	Microbial / cell culture with aeration
Plastic (PP / PMP)	50 – 1000 mL	Polypropylene / PMP	Moulded	Single-use, field work, breakage-prone areas

Choosing the Right Glass Material

The glass you choose determines how the flask handles heat and chemicals:

Material	Thermal Shock	Chemical Resistance	Best For
Borosilicate 3.3	Excellent	Excellent	Heating, autoclaving, aggressive reagents
Soda-lime	Poor	Good	Room-temperature mixing, short-term storage
PMP / PP plastic	Limited	Good	Single-use, field sampling, no-glass environments

For most Singapore labs, borosilicate 3.3 is the safe default — it can go from a hot plate to a water bath without cracking and resists almost every common reagent.

Capacity Guide

25 – 100 mL — Small-volume titrations, reagent prep, and quality-control testing.
250 mL — The workhorse size for routine titrations and mixing.
500 mL — Media preparation, culture broth, and mid-volume mixing.
1000 – 2000 mL — Bulk media, buffer preparation, and large-batch mixing.
5000 mL — High-volume reagent reservoirs and industrial-scale preparation.

A good rule of thumb: select a flask at least twice the volume of liquid you plan to hold, leaving enough headroom for safe swirling.

Why Choose JWRESEARCH for Erlenmeyer Flasks in Singapore?

Consistent quality — Flasks are annealed for strength, with smooth rims and accurate neck geometry for a reliable stopper or cap fit.
Full size range — From 25 mL to 5000 mL, in narrow-mouth, wide-mouth, and filtering styles.
Bulk supply — Single boxes to full cartons, serving both small research groups and high-throughput labs.
Local availability — Inventory ready for fast dispatch within Singapore, with no long overseas lead times.
Competitive pricing — Match-or-beat pricing on name-brand equivalents at 20–40% savings.

Need Erlenmeyer Flasks for Your Singapore Lab?

Call or email us for a quotation — we respond to all inquiries within one business day. Bulk discounts available for regular orders.

📞 +65 8039 3660 ✉️ SINGAPORE@JWSHY.COM

Frequently Asked Questions

What is an Erlenmeyer flask used for?

Erlenmeyer flasks (also called conical flasks) are used for mixing, heating, and storing liquids in the laboratory. Their wide flat base makes them stable on a bench or hot plate, while the narrow neck reduces evaporation and prevents splashing when swirling. They are standard for titrations, media preparation, reagent mixing, and — in the case of baffled or vented designs — microbial and cell culture.

What is the difference between narrow-mouth and wide-mouth Erlenmeyer flasks?

Narrow-mouth flasks have a small neck opening that reduces evaporation and contamination, making them ideal for titrations, reagent storage, and aseptic work with a stopper or foil cap. Wide-mouth flasks have a larger opening that makes it easier to add solids, powders, or large stir bars, and they are preferred for media preparation and general mixing. Choose narrow-mouth for precise or aseptic work, and wide-mouth when you frequently add bulky solids.

Should I choose borosilicate or soda-lime glass?

Borosilicate 3.3 glass is the standard for laboratory work because it withstands thermal shock and has excellent chemical resistance, so it can be autoclaved, heated on a hot plate, and exposed to most reagents without cracking or leaching. Soda-lime glass is cheaper and fine for light-duty, room-temperature work such as simple mixing and short-term storage, but it should not be subjected to rapid temperature changes or aggressive heating. For most Singapore labs, borosilicate 3.3 is the safer long-term investment.

What capacity Erlenmeyer flask should I buy?

Choose a capacity at least twice the volume of liquid you plan to hold, so there is enough headroom for safe swirling without spilling. Common sizes are 25 mL, 50 mL, 100 mL, 250 mL, 500 mL, 1000 mL, 2000 mL and 5000 mL. For titrations, 250 mL is the workhorse size; for media preparation and larger volumes, 1000 mL and 2000 mL are most common. JWRESEARCH stocks the full range in both narrow- and wide-mouth styles.