Round Bottom Flask – 250ml, Joint Size 24/29 (Borosilicate 3.3 Glass)

This high‑quality 250ml Round Bottom Flask is manufactured from durable 3.3 borosilicate glass, offering excellent thermal, chemical, and mechanical resistance for reliable use in school laboratories and educational science environments. Designed with a standard 24/29 ground glass joint, it is fully compatible with a wide range of laboratory apparatus.

Ideal for heating, boiling, distillation, and chemical reaction setups, this round bottom flask provides consistent performance and long‑lasting durability. Its precision‑crafted joint ensures airtight connections, making it a dependable piece of equipment for everyday practical lessons.

Key Features

• Made from premium 3.3 borosilicate glass for high thermal and chemical resistance
• 250ml capacity suitable for a wide range of experiments
• Standardised 24/29 ground glass joint for compatibility with common lab apparatus
• Excellent durability for repeated heating and cooling cycles
• Ideal for distillation, heating, mixing, and reaction‑based experiments

Ideal for School Science Lessons & Practical Experiments

Perfect for KS3, GCSE, and A‑Level chemistry, this round bottom flask is an essential component of many core experiments and demonstrations. It supports safe and effective teaching of important scientific principles, including:

• Distillation and separation of mixtures
• Heating and boiling liquids safely and evenly
• Demonstrating chemical reactions requiring controlled environments
• Creating reflux setups using compatible condensers
• Understanding laboratory glassware and apparatus assembly

Robust, reliable, and laboratory‑grade, this 250ml Round Bottom Flask offers excellent value and performance, making it an essential resource for practical science teaching in schools and colleges.