A PLUS Pear‑Shaped Jointed Flask – 25ml, 14/23 Joint (ASTM‑Accredited Borosilicate Glass)

The A PLUS Pear‑Shaped Jointed Flask, 25ml is a compact and excellent‑value laboratory vessel designed for precision work in both educational and professional environments. Crafted from ASTM‑accredited 3.3 borosilicate glass, it offers outstanding resistance to heat, thermal shock, and chemical corrosion, ensuring long‑lasting performance even under demanding laboratory conditions. Fully equivalent to and compatible with Quickfit‑style jointed components, this flask integrates effortlessly into standard glassware assemblies.

Featuring a 14/23 ground‑glass joint and a pear‑shaped design, this 25ml flask is ideal for micro‑scale evaporation, heating, concentration, and organic chemistry experiments. The shape helps reduce sample loss and improves evaporation efficiency, making it especially suitable for precision‑based laboratory procedures involving small quantities.

Key Features

• 25ml pear‑shaped flask with 14/23 joint
• Manufactured from ASTM‑accredited 3.3 borosilicate glass for durability
• Excellent thermal and chemical resistance for safe heating
• Compatible with Quickfit‑type jointed glassware
• Ideal for evaporation, concentration, heating, and small‑scale synthesis
• Pear‑shaped design enhances solvent evaporation and reduces sample waste
• Perfect compact option for school, college, and research laboratories

Ideal for School Science Lessons & Chemistry Practicals

The A PLUS 25ml pear‑shaped flask is particularly useful in KS4 (GCSE) and A‑Level chemistry, where students learn to handle jointed glassware safely while carrying out micro‑scale experiments. Its small capacity makes it ideal for activities that require precision and minimal reagent use, supporting safe and efficient hands‑on learning.

• Micro‑scale evaporation and concentration exercises
• Small‑volume heating and reflux demonstrations
• Introductory organic synthesis using small reagent quantities
• Solvent removal and reduction experiments in early organic chemistry
• Demonstrations of jointed glassware assembly and safe laboratory practice

Compact, durable, and fully compatible with standard laboratory equipment, the A PLUS 25ml Pear‑Shaped Flask supports effective, engaging, and safe chemistry learning across educational environments.