Best Flat Bottom Boiling Lab Flasks of 2025

The StonyLab 2-Neck Flask is an essential tool for your chemical experiments. Its versatile functionality allows you to easily add reactants and measure temperatures during various reactions, enhancing your workflow. With multiple capacities available, you can choose the right size for your specific needs. The superior craftsmanship ensures a smooth surface and high transparency, which is critical for precise measurements. Additionally, the robust borosilicate glass construction offers excellent resistance to acids and alkalis, making it a durable choice for ongoing research.

The Labasics Boiling Flask is a premium quality laboratory flask designed for efficient boiling operations. With a generous 500 ml capacity, it allows you to conduct experiments with ample liquid. The flask features a 24/29 standard ground joint, ensuring compatibility with various laboratory equipment. Made from durable borosilicate glass, its heavy-duty design withstands high temperatures, up to 250°C, making it ideal for rigorous laboratory use. The thick walls enhance its durability, providing you with a reliable tool for your scientific endeavours.

The StonyLab Boiling Flask is a versatile laboratory tool designed for various heating applications. Made from durable borosilicate glass, it can withstand temperatures up to 200°C, ensuring safety during high-heat experiments. The flat bottom design provides stability on lab surfaces, minimising the risk of spills. Additionally, the long neck allows for easy handling and pouring, making it convenient for transferring liquids without mess. This flask's 250ml capacity is ideal for small-scale experiments, giving you just the right amount for precise measurements.

The Labasics 50ml Flask is a versatile flat bottom boiling flask, ideal for various laboratory applications. With a 50 ml capacity, it provides ample space for experiments or reactions. Made from durable borosilicate glass, it can withstand temperatures up to 250°C, ensuring safety during high-temperature processes. The 24/40 standard taper outer joint allows for easy connection with other laboratory equipment, enhancing your workflow. This flask's single neck design offers convenience in handling and pouring, making it a reliable choice for any lab setting.

The StonyLab Boiling Flask is a heavy-duty, 2000ml flat bottom flask designed for laboratory use. Made from durable borosilicate glass, it can withstand temperatures up to 200°C, making it ideal for high-heat applications. The single neck design ensures easy access for pouring and mixing, while the 29/42 standard taper outer joint allows for compatibility with various laboratory apparatus. This flask is reusable, providing both convenience and cost-effectiveness for your experiments.

The StonyLab Boiling Flask is a flat bottom flask with a single neck, perfect for various laboratory applications. Made from durable borosilicate glass, it can withstand temperatures up to 200°C, making it ideal for boiling and heating substances safely. The 24/40 standard taper outer joint ensures a secure fit with other lab equipment, providing convenience during experiments. This flask is designed to meet the demands of laboratory work, allowing you to focus on your tasks without worrying about equipment failure.

The TN LAB Boiling Flask 50ml is an essential tool for any laboratory setting. Made from heavy-wall borosilicate 3.3 glass, this flask ensures durability and resistance to thermal shock. Its narrow neck design allows you to swirl liquids easily without the risk of spillage, making it ideal for experiments that require mixing. Additionally, it is manufactured to ISO: 9001 standards and carries CE certification, giving you peace of mind regarding its quality and safety for use in your lab.

The Eisco Florence Boiling Flask is constructed from heavy-duty borosilicate glass, ensuring durability and resistance to thermal shock. With a capacity of 50ml, it is ideal for small-scale experiments, allowing you to measure and mix precise amounts of liquids. The long neck design facilitates easy pouring and prevents spillage, making your experiments cleaner and more efficient. Although a stopper is not included, the flask's beaded rim allows for a secure fit with various stoppers, enhancing versatility in your laboratory tasks.

The TN Lab Boiling Flask Set includes four glass flasks in sizes of 50ml, 100ml, 250ml, and 500ml, all crafted from durable borosilicate glass. Their flat bottom design ensures stability during use, while the heavy-wall construction adds extra strength for handling heat. The narrow neck design allows you to swirl liquids easily without the risk of spills, making your experiments more efficient. Each flask is manufactured to ISO: 9001 standards and holds CE certification, ensuring high quality and safety for your lab needs.

The QWORK 250ml Flask is a versatile laboratory tool designed for various distillation tasks. Its 24/40 standard taper outer joint allows you to easily connect it to a distillation adapter, making it ideal for collecting and measuring liquids. Made from high-quality borosilicate glass, this flask can withstand extreme temperatures and is safe for direct heating over an open flame. The flat bottom design ensures stability on any flat surface, eliminating the need for additional holders and enhancing your workspace efficiency.