The Borosilicate Conical Flask 250ml is a laboratory glass vessel used for holding, mixing, preparing and handling compatible liquids during chemistry and general laboratory procedures. Its 250 mL nominal capacity and conical body make it suitable for controlled swirling, solution preparation and supervised practical work in educational, analytical and research laboratories.
Product Description
The STEMAids Borosilicate Conical Flask 250ml combines a flat base, tapered body and narrow upper section in a familiar laboratory flask format. The conical geometry helps users swirl liquids with less risk of splashing than an open straight-sided vessel during appropriate laboratory procedures.
The confirmed material is borosilicate glass and the nominal capacity is 250 mL. The exact borosilicate grade, neck diameter, rim or joint type, graduation markings, wall thickness, dimensions and thermal limits are . Browse related STEMAids laboratory glassware for complementary apparatus.
Key Features
- 250 mL nominal capacity: Suitable for small-scale solution preparation, mixing and laboratory experiments.
- Borosilicate glass construction: The product is identified as borosilicate glass laboratory ware.
- Conical flask geometry: Supports controlled swirling and mixing while reducing the open surface area at the neck.
- Flat standing base: Allows the flask to rest upright on a stable, level laboratory bench.
- Reusable laboratory format: Can be cleaned and reused where compatible with the substances handled and laboratory procedure.
- Educational and professional utility: Suitable for chemistry teaching, sample preparation and general laboratory workflows.
- Thermal performance: Exact permissible heating conditions are and should not be inferred from the material name alone.
Technical Specifications
|
Specification |
Detail |
|
Product Name |
Borosilicate Conical Flask 250ml |
|
Brand |
STEMAids |
|
Category |
Laboratory Glassware & Plasticware – Conical Flasks |
|
Nominal Capacity |
250 mL |
|
Material |
Borosilicate glass |
|
Body Type |
Conical |
|
Base Type |
Flat base |
What’s Included in the Kit
- Borosilicate Conical Flask 250ml
- Stopper or closure
- Protective product packaging
Applications / Uses
- Preparing and mixing compatible laboratory solutions.
- Swirling liquids during chemistry experiments.
- Holding reagents or samples temporarily during analytical procedures.
- Supporting titration workflows as a receiving flask where appropriate.
- Conducting supervised chemistry demonstrations and practical activities.
- General sample preparation in research and educational laboratories.
For related practical equipment, browse STEMAids chemistry laboratory equipment and other laboratory glassware products.
How to Use the Borosilicate Conical Flask 250ml
- Inspect the flask for cracks, chips, scratches or contamination before use.
- Place it on a clean, stable and level laboratory surface.
- Confirm that the liquid or reagent is compatible with borosilicate glass.
- Add the required material using appropriate laboratory transfer equipment.
- For mixing, hold or support the flask securely and swirl the contents in a controlled circular motion.
- Use an appropriate stopper, clamp or other accessory only when required by the procedure and compatible with the flask specification.
- Clean the flask after use according to the substances handled.
Safety note: Never use cracked or chipped glassware. Do not heat the flask until the permitted heating conditions for this specific STEMAids model have been confirmed. Avoid sudden temperature changes that may create thermal stress.
Care & Maintenance
- Clean the flask promptly using a method compatible with borosilicate glass and the substances handled.
- Avoid abrasive tools that may scratch the glass surface.
- Inspect the neck, rim and base before repeated laboratory use.
- Store clean and dry in a protected cabinet or designated laboratory glassware area.
Why Choose STEMAids
STEMAids is the STEM education brand of Eduscope Smart Learning Solutions Private Limited, a New Delhi-based manufacturer whose registered production activities include laboratory glassware. The company publishes ISO 9001:2015 quality-management credentials and maintains an active Importer-Exporter Code for export orders. STEMAids supplies schools, colleges, laboratories and institutional procurement projects. These corporate credentials do not establish ISO 1773 conformity or specific thermal performance for this flask unless supported by product documentation.
Frequently Asked Questions
What is a Borosilicate Conical Flask 250ml used for?
A Borosilicate Conical Flask 250ml is used for holding, mixing and preparing compatible liquids during chemistry, analytical and educational laboratory procedures.
What is the capacity of this conical flask?
The STEMAids conical flask has a nominal capacity of 250 mL.
What material is this 250 mL conical flask made from?
The flask is identified as being made from borosilicate glass. The exact borosilicate glass grade is .
Why is a conical flask useful for mixing liquids?
The tapered body and narrower neck allow liquids to be swirled while helping reduce splashing compared with a wide, open vessel.
Can the Borosilicate Conical Flask 250ml be heated?
The product is made from borosilicate glass, but the specific heating limits and intended heating methods are . Heat-use claims should only be made after checking the STEMAids specification.
