Automatic Karl Fischer Titrator Oil Moisture Analyzer

The coulometric Karl Fischer titrator is a powerful analytical tool used for the determination of water content in various types of samples. It is a highly accurate and precise method which offers quick and reliable results, making it a preferred choice for many laboratories. One of the major advantages of this titration technique is that it requires very little sample preparation. It can analyze samples with high moisture content as well as those with low moisture content, making it versatile for a range of applications.Overall, the coulometric Karl Fischer titrator is an important tool in various industries such as pharmaceuticals, food, and petrochemicals.
Features:
1.Strong environmental adaptability, precise, accurate and stable measurement results.
2.Built-in multiple test methods, easier testing.
3.High reliability.
4.Simple operation.
5.The display content is rich, and the measurement process is clear at a glance.
6.Multiple test result units are optional, suitable for different samples.
7.Navigational operation, more intuitive and convenient.
8.Rich extension interface.
Operational principle:
Reaction of Karl Fischer Reagent and water is:
I2+SO2+3C5H5N+H2O——2C5H5N·HI+C5H5N·SO3 ……( 1 )
C5H5N·SO3+CH3OH——C5H5N·HSO4CH3 ……( 2 )
The reagent solution is mixed of iodine, pyridine, and methanol. Rest on the Faraday’s law that the iodine which forms through the electrolysis on the anode has the direction proportion with electric charge quantity. The chemical formula is:
2I–2e——I2……(3)
From the formula 3, the iodine’s molecule quantity equals to the water’s. That’s to see, according to the consumption of the iodine, we can know the water content of the test sample. The instrument adopts Faradic current automatic control system, can easily adjusts the Faradaic current, most to 200mA.
Technical Parameters：
Measurement range: 3μg – 199.9mg water
Polarization voltage: -4000 – +4000mv; polarization current 0 – 50uA
Measurement speed: 2.8mg H2O/min (maximum)
Measurement accuracy: 3μg(10ug – 100μg H2O) ≤0.3%（water content >100μg H2O）
Resolution: 0.1μg H2O
Electrolytic current: 500mA
Electrolytic electrode: Platinum with diaphragm
Key features: 5 methods can be selected, 8 calculation formulas, sample unit PPM, %, mg/L, mg/kg can be switched at will
Display: 7 inch capacitive LCD touch screen, resolution 1027 x 600
Working environment temperature: +5 ~ +40℃; humidity≤90%
Power supply: 110-250V 50Hz
Instrument size: 495 x 330 x 325mm
Instrument weight: 6kg