Flat-Bottom Flask with Joint

Overview

The Flat-Bottom Flask with Joint is a laboratory vessel manufactured from borosilicate glass and fitted with a ground joint for secure, leak-resistant connections to other apparatus. Its flat base allows the flask to stand upright on a bench or hotplate without the need for a supporting ring, while the standardized neck supports straightforward integration into common glassware setups. This combination makes it suitable for procedures that require both stability and the ability to attach condensers, adapters, and other jointed components.

Material and Construction

Borosilicate glass gives this flask its dependable thermal and chemical performance. The material withstands temperatures up to 500°C and resists most acids and alkalis, making it appropriate for a wide range of heating, mixing, and storage tasks. The ground joint provides a precise glass-to-glass seal that helps maintain controlled conditions during reactions and distillations. Flasks of this style share the same jointed design principles found in our flat-bottom flasks fitted with ground joints, ensuring compatibility across compatible glassware lines.

Specifications

• Material: Borosilicate glass
• Joint Type: Ground joint
• Capacity: Available in sizes ranging from 50 ml to 2000 ml
• Temperature Resistance: Withstands temperatures up to 500°C
• Chemical Resistance: Resistant to most acids and alkalis
• Dimensions: Vary depending on capacity, with standard neck sizes for compatibility

Applications and Compatibility

The wide capacity range, from 50 ml up to 2000 ml, allows the flask to be selected to suit small-scale preparations as well as larger batch work. The flat bottom keeps the vessel stable during heating and stirring, and the ground joint enables direct connection to condensers, distillation heads, and feed accessories. For setups that require controlled liquid addition during a reaction, the joint design pairs naturally with addition funnels mounted above the flask.

When a curved base is preferred for more uniform heating or for use with a heating mantle, a round-bottom flask may be the more suitable choice. For users who require a standing vessel without a joint, plain flat-bottom flasks are also available. Selecting between these options depends on the heating method, the need for jointed connections, and the overall configuration of the apparatus.

Selection Notes

Because dimensions vary with capacity, confirm the required volume and the neck joint size to ensure the flask matches the other components in your setup. The standardized neck sizing is intended to simplify pairing the flask with compatible condensers, adapters, and funnels. This product is listed as available soon, so check current stock status before placing an order.