Neutralisationstester

Neutralisationstester, literally "neutralization tester" in German, refers to instruments designed to evaluate the extent of neutralization in chemical preparations and process streams. Depending on the configuration, a neutralisationstester may be a dedicated benchtop instrument or part of an automatic titration system.

Principle: The device tracks the progress of an acid-base neutralization by detecting the endpoint. Common methods include potentiometric pH measurement, where the pH approaching neutrality indicates completion; potentiometric conductometry, where conductivity changes reflect ion concentration; or colorimetric indicators that provide a visual endpoint. In automatic titration, a known amount of titrant is added until a predefined endpoint is reached.

Applications: Used in chemical manufacturing to verify neutralization steps, in environmental testing to ensure wastewater and effluent meet discharge pH limits, in laboratory quality control for pharmaceutical formulations, and in educational labs to demonstrate acid-base reactions.

Types and features: Manual titration kits, semiautomatic titrators, and fully automated inline neutralization sensors. Some devices integrate with process control systems to monitor pH in real time; others focus on lab-scale test kits with indicator papers or small burettes.

Calibration and quality: Regular calibration with standard buffer solutions is recommended. Users verify accuracy, repeatability, and detection limits; proper maintenance and safety handling of acids and bases are essential.

Note: The term is commonly used in German-language contexts, and in English descriptions it is typically referred to as a neutralization tester used to determine the degree of neutralization in a solution, often via pH change or endpoint titration.