BRAND. For lab. For life.®


at the push of a button

Titrating with bottle-top burettes

Titration is a volumetric method used for the quantitative analysis of a dissolved substance.

How to titrate?

Using a bulb pipette, a defined portion of a sample (liquid with an unknown fraction of dissolved material, e.g., acetic acid) is placed in an Erlenmeyer flask.
After dilution with water, 3 drops of an indicator solution are added. Then, with continuous swirling, a suitable titrant of known concentration (e.g., 0.1 M NaOH) is added from a burette until a color change in the indicator signals the endpoint of the titration.
Using the chemical equation and the volume of titrants used, the amount of substance dissolved in the sample can be calculated.


Functional principle of bottle-top burettes

Bottle-top burettes are mounted directly upon the reservoir bottle. By the upward movement of the piston, liquid is aspirated from the reagent bottle into the burette cylinder. By the subsequent downward movement of the piston, the liquid is released slowly, and added to the sample through the discharge tube until the titration is finished, e.g., by change of color.

Titration with the Titrette® from BRAND

The piston moves when the hand wheels are turned, and this takes up or discharges the liquid. The electronics of the instrument automatically recognize the direction of rotation, whether filling or titration is taking place. The liquid can be taken in quickly, and can then be delivered exactly, very slowly, drop by drop. A recirculation valve makes it possible to run the liquid back into the bottle during priming. Thus, air bubbles can be removed without loss of medium. The instrument can readily be disassembled in the laboratory for cleaning and maintenance.



Titrette®, 25 ml, DE-M, with titration/recirc. Valve

Titrette® is the first bottle-top burette to meet class A error limits for glass burettes. In addition, it stands out for easy titration, a compact design, excellent precision, an exchangeable dosing unit, and an optional PC interface. You can use the Titrette® to titrate quickly and reliably, even with restricted space and independent of available power connections - in the laboratory, in production, or in the field. In detail: The Titrette® burette incorporates a simple and effective design for bottle attachment. Separate buttons for on/off, pause, and CLEAR to delete the display and select function. Non-slip hand wheels and a smooth-running precision gear set for fast or drip titration make handling reliable and especially simple. Limitations of use: Operating temperature from +15 °C to +40 °C (from 59 °F to 104 °F) of instrument and reagent Vapor pressure up to 500 mbar Viscosity up to 500 mm² /s Altitude: max. 3,000 m above sea level Relative humidity: 20 % to

view product

Documents download

Flask adapter

Selection chart | pdf | 442 KB

Liquid Handling with Bottle-Top Instruments

Application Note | pdf | 734 KB

Testing and calibration of bottle top burets and dispenser

Application Note | pdf | 4 MB


Operating Manual | pdf | 15 MB


Brochure | pdf | 3 MB


Testing instructions (SOP) | pdf | 842 KB


Selection chart | pdf | 32 KB

Titrette® Cleaning

Videos | mp4 | 38 MB

Titrette® Startup

Videos | mp4 | 19 MB

Titrette® Titration

Videos | mp4 | 11 MB

Volumetric Measurement

Brochure | pdf | 4 MB

It can be used in many applications for aqueous and non-aqueous solutions (e.g., alcoholic KOH) up to 1 M.

Parts that come into contact with liquid are made from various specially resistant materials, e.g., borosilicate glass, PTFE, platinum-iridium, Al2O3 ceramic.

Subscribe to our Newsletter

By submitting the contact form, you agree to the processing of your data for the purpose of answering your request (Further information and information on revocation and objection can be found in our privacy statement).

Fields marked with * are required.