Product Description
The Flask Round Bottom 2 Neck B-Series is constructed of quality borosilicate glass, which means it can withstand heat, thermal shock, and chemical corrosion. The round bottom is for uniform heating, suitable for lab use.
Fitted with two neck joints, it is excellent for experiments requiring a double-necked flask for connections such as stoppers, adapters, and condensers. The standard taper joints, (B-24, B-29, and B-34, depending on size) provide a secure, leak-proof connection for many laboratory operations such as chemical reactions, distillation, and other operations requiring heating.
Excellent for small laboratory applications and for medium-scale industrial applications, 50mm to 5000ml capacities available for a 2-neck flask.
Key Features : Flask Round Bottom 2 Neck 50ml B-24/14
High Quality Borosilicate Glass: This glass has a low coefficient of thermal expansion (3.3), strong chemical resistance, and can withstand high temperatures with ease.
Round Bottom Design – Helps to heat the solution evenly.
Two-Neck Design – Enables condensers, funnels, or adapters to be joined together at once, for practical experimentation.
Various Neck Joint Sizes: Available with B-24, B-29, and B-34 standard taper joints according to flask size, which is suitable for most users.
Sizes Available – 50ml, 100ml, 250ml, 500ml, 1000ml, 2000ml, 3000ml and 5000ml for all type of Lab Applications.
High Chemical Resistance – the ability to safely handle strong acidic or alkaline chemicals and organic solvents.

Applications
Chemical Reactions – Ideal for reactions involving controlled heating and several apparatus connections.
Distillation Procedure – Suitable for efficient vaporization and condensation when combined with condensers.
Applications – Bunsen burners, oil baths, and heating mantles.
Pilot Plants & R&D Labs – Popular in pharmaceutical, chemical, food, and industrial research settings.
Instructional Demonstrations- Ideal for universities and schools teaching chemistry, physics, and biology.
Why Select Our Flask Round Bottom 2 Neck B-Series
Sturdy & Lasting – Suitable for everyday use under the most demanding laboratory conditions.
No Leak Installation: Made with precision B-series joints that easily secure the tubing.
Uniform Heated Performance: The round bottom provides effective and consistent heat transfer during use.
Universal Fit – Compatible with regular lab condensors, stoppers, and adapters.
Wide Selection – From 50ml for small jobs to 5000ml for big productions.
Specifications
Available sizes: 50ml, 100ml, 250ml, 500ml, 1000ml, 2000ml, 3000ml, 5000ml
Material: High-quality borosilicate glass
Neck Type: Two-neck construction
Neck Joint Sizes:
50ml → B-24,14
100ml to 2000ml → B-24,19
3000ml → B-34,19
5000ml → B-29,19
3. APPLICATIONS: Ideal for heating chemicals, making solutions, experimental heating, etc.
Temperature Resistant: Can be used under high heat and can resist sudden temperature changes
Chemical resistant: resistant to acids and bases, shell soda, and other organic solvents.
Price in Bangladesh
Flask Round Bottom 2 Neck B-Series (50ml to 5000ml) You can purchase Flask Round Bottom 2 Neck B-Series (50ml to 5000ml) at the best price from our website or store.
21 M/S Bright Scientific Co. 22 SPECIAL DISCOUNT FOR SPECIAL PROMOTIONAL OFFER. PLEASE CONTACT parties who can give satisfactory supply test reports.
Where to Buy
Flask Round Bottom 2 Neck B-Series. For detailed quotations, please write to us at purchasing@asiscientific.com. The product is available. M/S Bright Scientific Co. is a reliable importer, distributor, and supplier of laboratory glassware and scientific instruments in Bangladesh.
We have strict requirements on product quality, and provide many kinds of equipment for the laboratory and industries, such as glass tubes, filtration products, costing products, and so on.
Why buy from M/S Bright Scientific Co.
Trusted Supplier – We are a reliable supplier to many laboratories and institutions all over Bangladesh.
Competitive wholesale prices, high-quality glassware at affordable prices.
Fast & Safe Shipping – Speedy nationwide shipping.
Custom Options – Available upon request for custom models and special sizes.
Contact Information
M/S Bright Scientific Co.
📞 Phone: 01711285976







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