Glass Dropper Pipette 6

Quick Answer

This glass dropper pipette is a slender glass tube fitted with a soft rubber teat, used to draw up and dispense small liquid volumes drop by drop for qualitative work, staining, or adding reagents by drop count rather than by a precisely measured volume.

Description

A dropper pipette, sometimes called a Pasteur-style pipette, is one of the simplest and most widely used pieces of glassware in any laboratory. Squeezing the rubber teat and releasing it draws liquid up into the glass tube, and squeezing again dispenses the liquid drop by drop, which gives fine control for adding small amounts of a reagent, indicator, or stain without needing a calibrated pipette.

Because it measures by drop count rather than a printed volume scale, a dropper pipette is best suited to tasks where an approximate small quantity is enough, such as adding an indicator to a titration flask, applying a stain to a microscope slide, or transferring a small liquid sample between containers.

Specifications

Applications

• Adding reagents or indicators drop by drop during qualitative tests and titrations
• Applying stains or indicator solutions in biology and chemistry teaching labs
• Transferring small liquid samples where an approximate, low volume is sufficient
• General classroom liquid-handling tasks where a simple, low-cost tool is preferred

Care & Handling

• Avoid drawing liquid up past the glass tube into the rubber teat, which can damage the teat and risk contaminating future samples
• Rinse thoroughly between different reagents to avoid cross-contamination
• Replace the rubber teat if it perishes, cracks, or loses suction over time
• Store upright in a rack or stand to protect the glass tip from chipping
• Handle the glass tip carefully, as it is often thin-walled and can chip or break easily if knocked

Why Choose LabEquip

This dropper pipette is part of our full lab glassware range, so you can add it to your order alongside reagent bottles and other small glassware. Browse further apparatus in our chemistry lab equipment catalogue, and contact us for bulk classroom or laboratory orders.

Frequently Asked Questions

What is a glass dropper pipette used for?

It is used to draw up and dispense small liquid volumes drop by drop, commonly for adding reagents or indicators, applying stains, or transferring small samples where an exact measured volume is not required.

How much liquid does a dropper pipette dispense per drop?

Drop size can vary slightly depending on the liquid’s properties and how the teat is squeezed, so a dropper pipette is best suited to tasks measured by drop count rather than ones requiring an exact volume.

Can the rubber teat be replaced?

Yes, the rubber teat can generally be replaced if it perishes, cracks, or loses suction, letting you keep reusing the glass tube itself.

How should dropper pipettes be cleaned between uses?

Rinse the glass tube thoroughly with water or an appropriate solvent between different reagents, and avoid letting liquid travel up into the rubber teat, which is harder to clean than the glass.

Is a dropper pipette accurate enough for precise measurements?

No, a dropper pipette is intended for approximate, drop-by-drop dispensing rather than precise volumetric work; use a graduated or volumetric pipette when an exact measured volume is required.

Can LabEquip supply dropper pipettes in bulk for a school or laboratory?

Yes, LabEquip supplies glass dropper pipettes in bulk for schools, colleges, and laboratories; contact us with your required quantity.

Last Updated: September 2026