Dropper Pipette 6”

Product Code : SCL-CLE-11949

The StemAids 6-inch Dropper Pipette (also known as a Pasteur pipette or medicine dropper) is a fundamental laboratory tool designed for the manual transfer of small, unmeasured volumes of liquid. Unlike volumetric or graduated pipettes used for precise quantification, the dropper pipette is optimized for drop-wise addition—essential for pH adjustments, indicator application, and micro-scale reagent mixing. This 6-inch (150mm) model provides the ideal reach for standard test tubes and small reagent bottles.

Technical Specifications

Key Pedagogical & Laboratory Outcomes

• Transfer Interface: Facilitates student understanding of Surface Tension and Drop Formation. Learners identify how the diameter of the tip influences the volume of a single drop, a key concept in qualitative analysis.
• Titration Application: Enables the precise addition of Chemical Indicators; learners apply the dropper to add exactly 1–2 drops of phenolphthalein or methyl orange to a solution to observe sharp color transitions.
• Micro-Scale Analysis: Supports the analysis of "Reaction Kinetics" on a small scale; students evaluate precipitate formation by adding reagents drop-by-drop into a well plate or micro-centrifuge tube.
• Technique Evaluation: Provides a platform for evaluating contamination control; students learn the "pipette hygiene" protocol—never touching the dropper tip to the receiving vessel to prevent cross-contamination of stock solutions.

Glass vs. Plastic (LDPE): Which to Procure?

1. Glass (Reusable): Features a detachable rubber bulb. It is the preferred choice for handling organic solvents (which melt plastic) and for applications requiring sterilization/autoclaving.
2. Plastic (Disposable): Features an integrated bulb (one-piece construction). It is ideal for biology labs to prevent cross-contamination and eliminates the risk of glass breakage and sharps injuries.

International Logistics & Compliance

StemAids ensures comprehensive OEM readiness for global institutional procurement:

• Packaging: Export-grade bulk packaging. Glass droppers are nested in foam-lined boxes to prevent tip breakage; plastic droppers are often provided in sterile or non-sterile bulk packs of 100/500 units.
• Documentation: Includes Manufacturer’s Authorization Form (MAF), Certificate of Conformance (CoC), and Material Safety Data Sheets (MSDS).
• Durability: The rubber bulbs are treated to resist "perishing" (cracking) in humid climates, ensuring a long shelf-life in school chemistry stores.

Direct OEM Sourcing Advantages

Procuring StemAids Dropper Pipettes directly ensures vertical manufacturing control:

• Uniform Tip Orifice: Direct oversight ensures the internal diameter of the tip is consistent across the batch, leading to standardized drop sizes for experimental reproducibility.
• Ergonomic Bulb Suction: We ensure the bulbs provide a consistent "return force," allowing students to draw and dispense liquids with high tactile sensitivity.
• Direct Factory Inventory: Guaranteed availability of replacement Rubber Teats and extra-long 8” or 10” variants for deep-vessel sampling.
• Quality Assurance: Every glass batch is fire-polished to ensure there are no sharp edges at the rim or tip that could cause injury or snag on gloves.