Labglass Round Bottom Flask – 50ml (Narrow Neck, Borosilicate Glass)

This durable 50ml Round Bottom Flask is crafted from robust 3.3 borosilicate glass for excellent thermal and chemical resistance. Its narrow neck and beaded rim provide secure handling during heating and boiling procedures.

Fully compliant with ISO 1773, this flask is ideal for routine chemistry lessons involving heating, mixing, and laboratory demonstrations.

Key Features

• 50ml capacity
• 3.3 borosilicate glass for high durability
• Narrow neck with beaded rim
• ISO 1773 certified
• Compatible with standard laboratory stoppers
• Suitable stoppers: Solid 17mm & 1‑hole 17mm

Ideal for School Science Lessons & Prep Rooms

• Heating and boiling liquids safely
• Performing distillation demonstrations
• Preparing reagent mixtures
• Supporting practical work at GCSE and A‑Level

A strong, reliable flask ideal for heating and mixing tasks in school labs.