Simax Heavy Duty Boiling Tubes with Rim – 150 × 24mm, 1.8mm Wall (Box of 50)

The Simax Heavy Duty Boiling Tubes with Rim (150 × 24mm) are premium laboratory boiling tubes manufactured from high‑quality 3.3 borosilicate glass. Part of the trusted Simax test and boiling tube range, these tubes are designed for strength, safety, and reliable performance in school and educational laboratories. Each tube features a reinforced rolled rim and uniform wall thickness for consistent results and safer handling.

With a heavy‑duty 1.8mm wall thickness, these boiling tubes provide exceptional durability and resistance to breakage, making them ideal for direct heating and repeated boiling experiments. The borosilicate glass construction ensures excellent thermal shock resistance and outstanding chemical resistance, suitable for frequent use with a wide range of laboratory chemicals.

Supplied in a practical box of 50, these large‑diameter boiling tubes are ideal for demonstrations, group experiments, and investigations involving larger liquid volumes. The clear glass allows students and teachers to easily observe reactions, gas evolution, precipitates, and colour changes during practical work.

Key Features

• Box of 50 heavy‑duty rimmed boiling tubes
• Dimensions: 150mm length × 24mm diameter
• Heavy‑duty 1.8mm wall thickness for maximum strength
• Manufactured from 3.3 borosilicate glass
• Rolled rim for safer handling and reduced risk of chipping
• Designed for maximum heat transfer
• Excellent thermal shock resistance
• High chemical resistance
• Uniform wall thickness for consistent laboratory performance

Ideal for School Science Lessons

Ideal for KS3, GCSE, and A Level science lessons, these Simax heavy‑duty borosilicate boiling tubes are particularly well suited to experiments involving direct heating and larger sample volumes. They are commonly used for:

• Boiling and heating larger quantities of liquids
• Demonstrating exothermic and endothermic reactions
• Observing gas production, precipitation, and colour changes
• Investigating reaction rates and temperature effects
• Teaching correct and safe heating techniques using robust laboratory glassware

Exceptionally strong, reliable, and designed for repeated classroom use, these Simax heavy‑duty rimmed boiling tubes support safe experimentation and high‑quality practical science teaching in educational environments.