Labglass Conical Flask 1000ml, Narrow Neck – Borosilicate Glass [2649]

The Labglass 1000ml Conical Flask, also known as an Erlenmeyer flask, is a high‑quality laboratory vessel manufactured from durable 3.3 borosilicate glass. Designed for strength, reliability, and thermal resistance, this narrow‑neck flask is ideal for mixing, heating, and storing larger volumes of liquids in educational laboratories.

Its conical shape allows safe, splash‑free mixing by swirling, while the narrow neck helps reduce evaporation and provides better control when using stoppers or connecting apparatus. The flask’s bubble‑free construction delivers excellent resistance to thermal shock and chemical attack. Manufactured in accordance with ISO 1773, it ensures consistent quality and dependable performance for routine laboratory use.

With a generous 1000ml capacity, this flask is well suited to solution preparation, heating larger reaction volumes, and teacher‑led demonstrations in school and college science departments.

Key Features

• 1000ml capacity conical (Erlenmeyer) flask
• Manufactured from 3.3 borosilicate glass
• Narrow neck for controlled pouring and reduced evaporation
• Conical shape supports safe, splash‑free mixing
• High resistance to heat, chemicals, and thermal shock
• Bubble‑free glass for clarity and long‑term durability
• Conforms to ISO 1773 laboratory standards

Compatible Rubber Stoppers

• 2745 – Solid rubber stopper, 38mm
• 2746 – 1‑hole rubber stopper, 38mm
• 2747 – 2‑hole rubber stopper, 38mm

Ideal for School Science & Chemistry Lessons

The Labglass 1000ml Narrow Neck Conical Flask is ideal for KS3, GCSE, and A‑Level chemistry lessons, supporting a wide range of practical work where accurate mixing, heating, and handling of larger liquid volumes are required.

• Preparing and heating chemical solutions
• Carrying out reaction rate and equilibrium experiments
• Mixing larger volumes safely by swirling
• Teacher‑led demonstrations of chemical processes
• Teaching correct handling of conical laboratory glassware

Robust, versatile, and manufactured to recognised international standards, the Labglass 1000ml Narrow Neck Conical Flask is an essential laboratory item that supports safe, effective, and high‑quality science teaching.