Round Bottom Flask – 50ml with 19/26 Joint (Borosilicate Glass)

The 50ml 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.

The classic round bottom design allows even heat distribution when used with heating mantles or water baths, making it ideal for precise chemistry work. Fitted with a standard ground glass joint (19/26), the flask connects securely to compatible condensers, adapters, and other jointed glassware. Its compact 50ml capacity makes it suitable for small‑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

• 50ml capacity – ideal for small‑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 × 50ml round bottom flask

Ideal for School Science Lessons

Ideal for GCSE and A Level science lessons, this 50ml 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 use of jointed laboratory glassware
• Demonstrating even heating using water baths or mantles
• Routine use in school laboratories and science prep rooms

Compact, durable, and laboratory grade, this Borosilicate Round Bottom Flask is an essential item of glassware that supports safe, accurate, and engaging practical chemistry teaching in educational environments.