Stirrer Rod

What is a Glass Stirring Rod?

A glass stirrer is a straight, tube-like tool that is used to mix chemicals by hand. This tool gives you accuracy and control in lab work where mechanical mixing is too much or not needed. The stirring rods at Borosil Scientific are made of 3.3 borosilicate glass, which can withstand high temperatures and is strong and unreactive. A PTFE (polytetrafluoroethylene) blade is also attached to each rod. This makes stirring more effective while still keeping the chemicals safe from each other.

This combination makes it ideal for everyday mixing tasks in analytical labs, wet chemistry stations, and research environments handling aggressive solvents or sensitive formulations. The design ensures minimal disturbance to glassware and eliminates sample contamination.

Types of Glass Stirring Rod

Although structurally simple, not all stirring rods offer the same level of performance. Borosil Scientific supplies glass rods for laboratory use that are precision-crafted from borosilicate 3.3 tubing and integrated with a fixed PTFE blade at one end.

Both standard lengths and custom sizes are available depending on procedural needs. These rods support mixing in graduated cylinders, conical flasks, and wide-mouthed beakers without compromising structural integrity.

There is no bare-glass rod variant in circulation from Borosil Scientific; all supplied models include a PTFE blade as standard.

Advantages include:

• Non-reactivity: Maintains sample purity by eliminating reaction potential during mixing.
• High clarity: Visual clarity during operation enables better process control.
• Durability: Reusable over hundreds of mixing cycles without degradation or microfracture risks.
• PTFE blade performance: increases mixing surface area and prevents sample residue sticking or abrasion.

These properties make the rods particularly well-suited for applications involving expensive or reactive media. In environments where even trace contamination from tools can impact reproducibility, their inert nature becomes a key advantage.

Applications of Glass Stirring Rod in Laboratories

The glass rod for laboratory use is widely used across industries such as pharma, biotech, chemical synthesis, and academic labs. Its applications are broad, but specific roles include:

• Manual Reagent Mixing: Especially in volumetric flasks or graduated cylinders, where mechanical agitation is not suitable.
• Decanting and Liquid Transfer: Used to control the direction and flow during pouring to prevent splash or static buildup.
• Suspension Redistribution: For rehomogenising settled materials in buffer or salt solutions.
• pH Titration Mixing: Makes sure there’s a slow, uniform acid/base distribution during endpoint monitoring.
• Working with Light-Sensitive Materials: PTFE provides a non-stick, non-absorbent surface even in opaque or light-sensitive chemical systems.

Why Choose Borosil Scientific Glass Stirring Rod?

Borosil Scientific’s glass stirring rods are designed for routine and high-precision lab workflows where tool performance must remain consistent. These rods are dimensionally stable, fully autoclavable, and show no signs of degradation over prolonged use.

Key reasons it is preferred in labs:

• Manufactured from Borosilicate 3.3 Glass: Offers low thermal expansion and high chemical tolerance.
• PTFE Blade Integration: Fixed during manufacturing for durability and smooth operation.
• Compliance and Traceability: Each batch complies with internal QA protocols and is batch-tracked.
• Compatible with all Borosil Scientific Glassware: No risk of scratch or seal damage when used with other Borosil Scientific products.

These performance-oriented rods are in line with the latest thinking in heat resistance, contamination control, and procedural accuracy. They are a popular choice in GLP-compliant and ISO-certified facilities because the service life and batch consistency are competitive.