Specifications

Std Joint Erlenmeyer Flask · Specifications

The following are general specifications. For custom sizes or special joint sizes, please contact our sales team.

Joint Size	Capacity (ml)	OD (mm) approx.	Height (mm) approx.	Material
Please contact us to confirm the available specifications.

* Dimensions are approximate.
* Custom joint sizes and bulk procurement solutions available.

Joint Size	Capacity (ml)
Please contact us to confirm the available specifications.

Joint Size	Capacity (ml)	Variant
Please contact us to confirm the available specifications.

Product Description

The standard joint Erlenmeyer flask is one of the most widely used reaction vessels in laboratory settings. Its distinctive conical design makes it ideal for swirling and mixing operations while effectively reducing splashing. The standard 1:10 taper ground glass joint enables leak-free connections with all matching standard joint accessories, making it an essential choice for titration, reflux, heating, and bacterial culture applications.

Key Features

Borosilicate Glass 3.3: ISO 3585 compliant, low expansion, thermal shock 280°C
Conical Design: Easy swirling, reduced splashing, ideal for titration
Standard Joint: 1:10 taper, precision ground for reliable sealing
Multiple Sizes: Available in 14#, 19#, 24#, 29# joint sizes
High Transparency: Easy observation of reactions
Chemical Resistant: Suitable for most organic solvents
Narrow Mouth: Reduced evaporation, ideal for volatile samples

Quality Assurance

Every flask undergoes strict dimensional inspection, joint taper testing, and thermal resistance testing to ensure compliance with applicable standards.

Note: Ensure joints are clean and dry before use to prevent sticking. Use palm or stopper to seal when swirling. Use heating mantles or water baths for uniform heating.

Applications

Typical Applications

Titration

Acid-base titrations, redox titrations, quantitative analysis

Organic Synthesis

Reflux reactions, heating, swirling mixing

Microbiology

Bacterial culture, shake flask culture

Pharmaceutical R&D

Intermediate synthesis, sample preparation

Education

University chemistry lab teaching

Analytical Chemistry

Sample preparation, solution preparation

Compatible Equipment

Heating mantles, water baths, shakers

Standard joint condensers, distillation heads, fractionating heads

Burettes, pipettes, and other analytical tools

Tip: The Erlenmeyer flask is the preferred vessel for titration analysis. The conical design facilitates swirling and observation. Use accessories of the same joint size for optimal sealing.

Operation & Maintenance

User Guide

Preparation

Inspect flask for cracks, chips, or scratched joints
Clean joint surfaces with a soft cloth or cotton swab
Apply a small amount of vacuum grease if joints are too tight (avoid sample contamination)

Swirling & Mixing

Seal the mouth with palm or stopper before swirling
Swirl in a circular motion for thorough mixing
Control the amplitude to avoid splashing

Heating

Use heating mantles or water baths for uniform heating
Fill no more than 2/3 capacity to prevent boiling over
Always heat gradually, avoid sudden temperature changes

Assembly & Disassembly

Insert with gentle twisting motion, do not force
Remove by gently twisting, avoid pulling straight out
For stuck joints, try heating the outer wall with a hairdryer

Cleaning & Maintenance

Clean immediately after use to prevent residue buildup
Wash joints with soft brush and detergent, avoid hard objects
Air dry after washing, store with soft paper between joints

Care & Notes

Show care & notes

Safety Tips

Watch temperature gradients during heating
Always work in a fume hood when handling hazardous chemicals

Do not

Do not use cracked or chipped flasks for heating or vacuum work
Add titrant slowly during titration to avoid overshooting

Std Joint Erlenmeyer Flask

Specifications