Coulomb Method Moisture Analyzer

Coulometric moisture analyzers are based on the Karl Fischer reaction, where iodine is electrolyzed to quantitatively react with the moisture in the sample, and the water content is calculated by measuring the amount of electricity required for the electrolysis. They are used to determine trace moisture in liquids and solids, and are applied in quality control in the chemical, petroleum, and pharmaceutical industries.
Selection
When selecting, consider matching the sample properties with the electrolyte type, ensuring the moisture measurement range covers the requirements, the detection accuracy meets standard specifications, ease of operation and maintenance costs, as well as instrument certification. The solubility of the sample and potential interference factors should be evaluated in advance.

Terms

Standards

Instruments

Using Coulomb ElectRode technology, it can measure 10μg~ 20mg moisture, support 10mA to 100mA electrolysis current, no need to calibrate Reagent, with RS232 interface to connect to the printer.

$ 1939.00

Measurement range 5μg~ 100mg, Precision of moisture determination up to +/- 0.3%, results can be obtained in one minute, automatic tracking control of electrolysis current, reliable and easy to use.

$ 1518.00

Measurement range 3μg~ 150mg, sensitive valve 0.1μg, Precision up to +/- 0.3%, automatic detection of electrolysis and measurement circuit, suitable for a variety of sample analysis.

$ 1910.00

Measurement range 5μg~ 80mg, electrolysis current 0~ 300mA automatic control, analysis speed of one minute fast results, easy operation and high accuracy.

$ 1393.00

It can evaporate water in solid samples of 10g or less, use disposable sample bottle sampling, vaporize by heating and transport water in high purity Developing solvent, suitable for a variety of solid or quasi-solid sample analysis.

$ 3462.00

The Coulomb Titrimetric method does not require a standard titration solution, the third-gear electrolysis current can be selected from 10mA, 20mA, 40mA, and supports Data storage and USB communication. Measurement range 0.0~ 100.0mg/L can be extended to 1000mg/L.

$ 1593.00

Measurement range 5μg~ 100mg, Sensitivity up to 1μg, electrolysis current 0~ 300mA automatic tracking, one minute to obtain results and automatically print data.

$ 1724.00

Measurement range 3μg~ 100mg, Sensitivity of 0.1μg, results can be obtained in one minute, with over-iodine indication and fault automatic detection function.

$ 1724.00

Using electromagnetic force equilibrated Electronic Balance and halogen radiation technology, moisture readability of 0.02%, Heating Temperature range RT + to 200 ℃, quickly complete the test in a few minutes, durable and functional.

$ 746.00

Moisture is measured by thermogravimetry, equipped with 500W high-efficiency halogen ring lamp for uniform heating, Temperature range 40-180 ℃ controllable. 5-inch Touchscreen real-time display of moisture change Linear dispersion, support automatic shutdown and Data storage 100 groups, intuitive operation without supervision.

$ 420.00

Using halogen lamp heating source and German HBM Sensor, moisture readability of 0.01%, Repeatability ≤ +/- 0.2%, support 0~ 100% moisture measurement range, suitable for a variety of sample states such as powder and liquid.

$ 564.00

Measurement principle using resistance method, accuracy of 0.1%, support a variety of grain Measurement range, with voice reminder and automatic shutdown function, portable design weighs only 254g.

$ 90.00

Adopt sealing solvent system to reduce water vapor interference, support 100 titration methods, Measurement range covers 1ppm to 5%, built-in automatic drift correction function, equipped with electronic adjustment Magnetic Stirrer.

$ 11389.00

Measurement principle of resistance method, accuracy of +/- 1%, equipped with 610mm detachable long probe, can measure different depths of grain moisture, support voice broadcast and a variety of function settings, suitable for a variety of grain moisture detection.

$ 97.00

Using halogen radiation heating technology, the moisture readability reaches 0.01%, the determination of Precision +/- 0.2%, and the test is completed quickly in a few minutes, with 8 kinds of paraMeter display functions.

$ 446.00

Articles

Selection Differences Between Rapid Moisture Analyzers and Coulometric Moisture Analyzers
This article mainly introduces the differences between a rapid moisture analyzer and a coulometric moisture analyzer.
Karl Fischer Moisture Analyzer Determines Moisture Content in Powder Coatings
This article introduces the method of determining the moisture content in powder coatings using a Karl Fischer moisture analyzer. Excessive moisture content in powder coatings can affect the quality of the coating, leading to issues such as bubbles. The Karl Fischer method measures moisture through the quantitative reaction of iodine and sulfur dioxide, which is divided into volumetric and coulometric methods.
Karl Fischer Moisture Analyzer for Determining Water Content in Coatings
This article introduces the method for determining the water content in coatings using the Karl Fischer moisture analyzer. The principle is based on the quantitative reaction of iodine and sulfur dioxide in the reagent with water. The coulometric method is commonly used to generate iodine through electrolysis and calculate the moisture content by measuring the electrical charge.
Difference between halogen moisture analyzer and Karl Fischer moisture analyzer
The core difference between halogen moisture analyzers and Karl Fischer moisture analyzers lies in their measurement principles. Halogen moisture analyzers are based on the thermogravimetric method, while Karl Fischer moisture analyzers rely on titration principles, either volumetric or coulometric, which involve quantitative chemical reactions specifically targeting water molecules.