Round Bottom Flask – 100ml with 19/26 Joint (Borosilicate Glass)

The 100ml Round Bottom Flask with 19/26 Joint is a high quality piece of laboratory glassware designed for controlled heating, reflux, and reaction work in school science laboratories and educational environments. Manufactured from premium 3.3 borosilicate glass, this flask offers excellent resistance to heat, thermal shock, and chemical attack, ensuring reliable performance during practical lessons.

The classic round bottom design promotes even heat distribution when used with heating mantles, water baths, or clamps, making it ideal for accurate and repeatable chemistry experiments. Fitted with a standard ground glass joint (19/26), the flask connects securely to condensers, adapters, and other jointed laboratory apparatus. With a useful 100ml capacity, it is well suited to small to medium‑scale reactions and classroom demonstrations.

Strong, clear, and designed for repeated use, this round bottom flask supports safe and professional laboratory practice in busy teaching environments.

Key Features

• 100ml capacity – ideal for small and medium‑scale reactions
• Manufactured from 3.3 borosilicate glass
• Round bottom design for uniform heat distribution
• Standard ground glass joint for secure apparatus connections
• Joint size: 19/26
• Excellent heat and chemical resistance
• Clear glass for easy observation of reactions
• Supplied as 1 × 100ml round bottom flask

Ideal for School Science Lessons

Ideal for GCSE and A Level science lessons, this 100ml Round Bottom Flask supports the teaching of advanced laboratory techniques and reaction setups.

• Heating and carrying out controlled chemical reactions
• Supporting reflux and distillation demonstrations
• Teaching correct assembly of jointed glassware
• Demonstrating even heating using water baths or heating mantles
• Routine use in school laboratories and science prep rooms

Durable, precise, and laboratory grade, this 100ml Borosilicate Round Bottom Flask is an essential piece of glassware that supports safe, accurate, and engaging practical chemistry teaching in educational environments.