Conical Flask – 500ml, 3.3 Borosilicate Glass (Narrow Neck, Graduated)

The 500ml Conical Flask is a versatile and robust piece of laboratory glassware, ideal for routine use in school science laboratories. Manufactured from high‑quality 3.3 borosilicate glass, this flask offers excellent resistance to heat, thermal shock, and chemical corrosion, ensuring safe and reliable performance during practical work.

Designed with a narrow neck and clear graduation markings, the conical shape allows contents to be easily mixed by swirling without the risk of spillage. The flask features an inner neck diameter of approximately 30mm, making it compatible with standard bungs and accessories commonly used in educational laboratories. Please note that neck sizes may vary slightly due to the manufacturing process.

This model (Product Code: [8394]) is well suited to repeated classroom use and is easy to clean, autoclavable, and built to withstand the demands of busy teaching environments.

Key Features

• Made from durable 3.3 borosilicate glass
• 500ml capacity, ideal for a wide range of experiments
• Conical shape for safe swirling and mixing of liquids
• Narrow neck reduces splashing and supports the use of bungs
• Graduated markings for approximate volume measurement
• Inner neck diameter: approx. 30mm (may vary)
• Excellent resistance to heat and chemicals
• Suitable for repeated use in educational laboratories

Ideal for School Science Lessons

The 500ml Conical Flask is an essential item for KS3, GCSE, and A‑Level science lessons. Its design makes it particularly suitable for chemistry experiments involving mixing, heating, or reacting liquids, while supporting safe and effective practical learning.

• Carrying out acid‑alkali reactions and neutralisation experiments
• Mixing solutions by swirling without spillage
• Heating liquids over a Bunsen burner or hot plate
• Using bungs and delivery tubes for gas collection experiments
• Supporting investigations into rates of reaction

Strong, reliable, and easy to handle, this conical flask supports safe laboratory practice and helps students develop essential experimental skills with confidence.