Metrohm found that the use of temperature titration to determine organometallic compounds is more efficient and accurate. The main advantage of this method is the universality of the determination of different metal organic compounds.
Metal organic compounds such as Grignard reagents or strong bases (such as butyl lithium compounds) are commonly used in organic chemistry. Knowledge of the exact amount of the reaction components facilitates better planning of the amount required for the reaction, preventing waste or under-production.
The intense exothermic reaction between sec-butanol and organometallic compounds makes rapid quantitative analysis of these materials possible. Since the reaction of these samples is severe, the titration process needs to be carried out in a protective gas atmosphere.
Temperature titration is an alternative to potentiometric titration. It is faster (in less than three minutes to get the end point), the sensor is maintenance-free, and one sensor is suitable for all titrations (acid-base titration, redox titration, EDTA, precipitation,
Non-aqueous titration). In addition, the sensor does not need to be corrected and resistant to corrosion.
> Learn more about temperature titration
Temperature titrator introduction:
Main functions and features
The 859 Titrotherm is a potentiometric titration with a temperature probe. The temperature probe is based on a semiconductor process (thermistor) and incorporates the innovative electrode technology of Metrohm with a response time of only 0.3s and a resolution of up to 10-5 k. It is an ideal electrode for temperature titration and can accurately and quickly respond to any temperature. Variety.
Metrohm's Dosino bottle top drive dosing technology sets a new capacity titration standard that saves space and guarantees the highest precision.
A clear software interface that allows you to adjust the screen and display special method parameters to quickly find important commands or parameters. The endpoint is determined by calculating the first and second derivatives of the titration curve, and additional parameters can be optimized to improve reproducibility.
Its distinctive features:
Endothermic and exothermic reactions
The change in temperature is measured by a thermistor, and the end point is indicated by the rate of temperature change.
Electrodes do not require calibration and maintenance
An electrode suitable for a variety of titration types
The electrode does not make electrical contact with the solution
Reduce sample preparation process
Fast measurement - usually only 2-5 minutes
Unskilled users can operate
In principle, this method is suitable for any reaction as long as there is a sufficiently significant temperature change in the sample solution. In particular, it can solve the difficulties that potential titration cannot solve, such as:
â—†There is no suitable potentiometric titration electrode
â—† No suitable reference electrode
â—†The sample interferes with the indication of the electrode or may damage the electrode
â—† There is no solvent suitable for potentiometric titration
Application field
Applicable to: acid-base titration (including weak acid weak base); redox titration; complexometric titration (such as EDTA); precipitation titration; non-aqueous titration.
Applicable industries such as:
Chemical manufacturing; fertilizers; mineral smelting; electroplating industry; synthesis of acid blenders and munitions in the semiconductor industry; pigments and bleaches (modifiers); TAN and FFA...
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