How much does a Karl Fischer titrator cost?
How much does a Karl Fischer titrator cost?
Karl Fischer Titrators
| Capacity | Readability | Price |
|---|---|---|
| Range | Resolution | Price |
| ±2000 mV | 0.1 mV | Your Price: $7,192.40 |
| ±2000 mV | 0.1 mV | Your Price: $8,620.50 |
How do you use Karl Fischer titrator?
The principle of Karl Fischer titration is based on the oxidation reaction between iodine and sulphur dioxide. Water reacts with iodine and sulphur dioxide to form sulphur trioxide and hydrogen iodide. An endpoint is reached when all the water is consumed.
What is the use of Karl Fischer apparatus?
A Karl Fischer titrator, also known as a KF titrator, is used to determine the amount of water in a sample. Because the presence of water can affect many characteristics of a product, including reactivity, stability, and quality, KF titration is important to and is used in many industries.
What is Karl Fischer instrument?
A Coulometric Karl Fischer instrument is often referred to as a coulometer. The advantage of the Coulometric Karl Fischer method is the capability to accurately measure small amounts of moisture. Sensitivity of these instruments is as low as 0.1 microgram (µg) of water.
What is KF test?
Karl Fischer (KF) Titration is a technique for the determination of moisture content. It is a process based on the reaction of iodine with water. The KF method is one of the few techniques that will measure water content and not be affected by other volatiles.
What is KF water factor?
The water equivalence factor, F in mg of water per ml of the reagent is given by the expression 0.1566 w/v, where w is the weight, in mg, of the sodium tartrate and v is the volume, in ml, of the reagent required.
Why DST is used for KF calibration?
Answer. Sodium tartrate dihydrate is the volumetric standard for Karl Fischer titration. Under normal conditions, it is stable and non-hygroscopic. Sodium tartrate dihydrate has a stoichiometric water content of 15.66% and is primarily used for titer determination in volumetry.
Why is DST used in KF?
What is the pH of Karl Fischer reagent?
between pH 5.5 and 8
The optimum pH range of the sample solution for efficient Karl Fischer titration is between pH 5.5 and 8.
What is difference between KF and Lod?
The Important difference between KF and LOD is, KF determines only moisture content in the sample and LOD determines weight loss of sample due to sample drying including volatile impurities.
What is the limit of KF factor?
Standardization is valid, if concentration should be not less than 5 mg and not more than 7mg. The relative Standard deviation between two average KF factors of water and DST determined consecutively should not be more than 3.0 % [Average of two factors (2 with water and 2 with DST) to be considered for calculation.]
Which chemical is used in KF calibration?