The Caliper

Drop Counter

Vernier Drop Counter
Your students will be able to perform fast, easy, accurate titrations with the Vernier Drop Counter. This new product takes the tedium out of titrations, leaving time for your students to focus on the chemistry. Working in conjunction with a LabPro and a Windows or Macintosh computer, the Drop Counter accurately records the number of drops of titrant added during a titration. The Drop Counter software can automatically convert the number of drops into volume. It will also record pH and temperature values and calculate the first and second derivatives of the pH for easy equivalence point determination. See our sample data below.

The Drop Counter can also be used for conductimetric or potentiometric titrations using our Conductivity Probe, Ion-Selective Electrodes or any electrode with a 0- to 5-volt output. You could even use it instead of a utility clamp anytime you need to hold an electrode in place.

The Vernier Drop Counter can be used with your own buret or with the dispensing vessel that is included. This vessel was designed to keep the drop size consistent and to make drop rate regulation simple and easy. The Drop Counter includes a cable, software, and a dispensing vessel. It will be available in early December.

Product	Order Code	Price
Vernier Drop Counter	VDC-BTD	$88.00

pH vs. volume of acid-base titration using the Vernier Drop Counter.
First derivative of pH.	Second derivative of pH.