Simax Conical Flask – Narrow Neck, 5000ml (3.3 Borosilicate, ISO 1773)

The Simax Narrow Neck Conical Flask (5000ml) is a large‑capacity Erlenmeyer flask designed for demanding laboratory tasks in school science departments, colleges, and preparation rooms. Manufactured from premium 3.3 borosilicate glass, this flask conforms to ISO 1773, ensuring high levels of durability, thermal stability, and chemical resistance.

The traditional narrow neck design helps reduce evaporation and splashing during mixing, while the classic conical shape allows safe swirling of liquids without spillage. With a substantial 5000ml (5 litre) capacity, this flask is ideal for preparing large volumes of solutions, mixing reagents, and supporting extended demonstrations or bulk experiments in educational laboratories.

Clear graduation markings provide approximate volume guidance, and the robust construction ensures reliable performance under repeated heating and handling in busy teaching environments.

Key Features

• 5000ml (5 litre) capacity for large volume laboratory work
• Manufactured from 3.3 borosilicate glass
• Conforms to ISO 1773 laboratory standards
• Narrow neck design to reduce splashing and evaporation
• Classic conical (Erlenmeyer) shape for safe mixing
• Excellent heat and chemical resistance
• Clear glass for easy observation of contents
• Suitable for heating, mixing, and solution preparation
• Supplied as 1 × 5000ml conical flask

Ideal for School Science Lessons & Prep Rooms

Ideal for GCSE and A Level science departments, the Simax 5000ml Narrow Neck Conical Flask supports practical activities that require large quantities of liquids and reagents.

• Preparing and mixing large volumes of chemical solutions
• Supporting extended class demonstrations
• Heating and mixing liquids during advanced chemistry experiments
• Teaching correct handling of large laboratory glassware
• Routine use in school laboratories and science preparation rooms

Strong, stable, and manufactured to recognised international standards, this Simax Narrow Neck Conical Flask is an essential piece of laboratory glassware that supports safe, efficient, and effective science teaching in educational environments.