Karl Fischer Titration

Reagents & Chemicals

The term "Karl Fischer Titration" can be traced back to the beginnings of the quantitive determination of water in 1935. The "Karl Fischer method" was practiced for the first time by German chemist Karl Fischer and manifested itself in several pharmacopoeias since then.

Initially water was titrated with an anhydrous methanolic solution of iodine, sulfur dioxide and pyridine in this method. In 1982 Eugen Scholz changed this procedure by adding basic components such as imidazole or acidic components such as salicylic acid. This modified method is still an essential part of everyday laboratory work.

In the Analytics-Shop you will find numerous reagents for Karl Fischer titration, such as the product line Hydranal by manufacturer Honeywell. It includes, for example, various one- and two-component reagents for volumetric titration, reagents for coulometric titration with and without diaphragm, ethanol-based reagents and much more.

Should you ever not be able to find the correct item or have any questions concerning our products, do not hesitate to contact us - our expert team is always happy to help.

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Product Image of HYDRANAL Water Standard 10.0 (water content 10 mg/g = 1.0%), 10 x 8ml
HYDRANAL Water Standard 10.0 (water content 10 mg/g = 1.0%), 10 x 8ml
Item number: FL34849-80ML
Brand: Fluka

In stock

€104.37
Product Image of HYDRANAL Coulomat CG, 10 X 5 ML Amp
HYDRANAL Coulomat CG, 10 X 5 ML Amp
Item number: FL34840-50ML
Brand: Fluka

In stock

€146.93
Product Image of HYDRANAL Water Standard 1.0 mg/g = 0,1 %, 10x4 ml
HYDRANAL Water Standard 1.0 mg/g = 0,1 %, 10x4 ml
Item number: FL34828-40ML
Brand: Fluka

In stock

€99.13
Product Image of HYDRANAL Standard 5.0, volum. KF Tit. (water ~5.8 mg/g), Glass Bottle, 100 ml
HYDRANAL Standard 5.0, volum. KF Tit. (water ~5.8 mg/g), Glass Bottle, 100 ml
Item number: FL34813-100ML
Brand: Fluka

In stock

€43.68
Product Image of HYDRANAL Composite 2 Reagent, volum. one-component KF Tit. (Methanol free), Glass Bottle, 1 L
HYDRANAL Composite 2 Reagent, volum. one-component KF Tit. (Methanol free), Glass Bottle, 1 L
Item number: FL34806-1L
Brand: Fluka

In stock

€199.16
Product Image of HYDRANAL Composite 5 Reagent, volum. one-component KF Tit. (Methanol free), Glass Bottle, 1 L
HYDRANAL Composite 5 Reagent, volum. one-component KF Tit. (Methanol free), Glass Bottle, 1 L
Item number: FL34805-1L
Brand: Fluka

In stock

€199.16
Product Image of HYDRANAL Solvent reagent for volumetric two-component KF Tit., Glass Bottle, 1 L
HYDRANAL Solvent reagent for volumetric two-component KF Tit., Glass Bottle, 1 L
Item number: FL34800-1L
Brand: Fluka

In stock

€109.50
Product Image of HYDRANAL Coulomat E reagent for coulometric KF titration (ethanol-based), Glass Bottle, 500 ml
HYDRANAL Coulomat E reagent for coulometric KF titration (ethanol-based), Glass Bottle, 500 ml
Item number: FL34726-500ML
Brand: Fluka

In stock

€146.93
Product Image of Buffer solution for strong bases for Karl Fischer Titration apura, 500 ml
Buffer solution for strong bases for Karl Fischer Titration apura, 500 ml
Item number: MC1880360500
Brand: Merck
€98.94 €102.00
Product Image of Buffer solution for strong acids for Karl Fischer Titration apura, 500 ml
Buffer solution for strong acids for Karl Fischer Titration apura, 500 ml
Item number: MC1880350500
Brand: Merck
€98.94 €102.00
Product Image of N 20 Aluminium crimp cap, silver, center hole Silicone blue transparent/PTFE colourless
N 20 Aluminium crimp cap, silver, center hole Silicone blue transparent/PTFE colourless
Item number: MN702093
Brand: Macherey-Nagel
€51.00
Product Image of 5 mL Headspace Crimp Neck Vial N 20 outer diameter: 21.7 mm, outer height: 38.2 mm clear
5 mL Headspace Crimp Neck Vial N 20 outer diameter: 21.7 mm, outer height: 38.2 mm clear
Item number: MN702020
Brand: Macherey-Nagel
€29.60
Product Image of HYDRANAL Xylene Solvent for KF titration, Glass Bottle, 6 x 1L
HYDRANAL Xylene Solvent for KF titration, Glass Bottle, 6 x 1L
Item number: FL37866-6X1L
Brand: Fluka

In stock

€426.48
Product Image of HYDRANAL Xylene Solvent for KF titration, Glass Bottle, 1 L
HYDRANAL Xylene Solvent for KF titration, Glass Bottle, 1 L
Item number: FL37866-1L
Brand: Fluka

In stock

€81.88
Product Image of HYDRANAL - Salicylic acid, Buffer substance for Karl Fischer titration, Plastic Bottle, 500 g
HYDRANAL - Salicylic acid, Buffer substance for Karl Fischer titration, Plastic Bottle, 500 g
Item number: FL37865-500G
Brand: Fluka

In stock

€56.11
Product Image of HYDRANAL - Imidazole, Buffer substance for Karl Fischer titration, Plastic Bottle, 500 g
HYDRANAL - Imidazole, Buffer substance for Karl Fischer titration, Plastic Bottle, 500 g
Item number: FL37864-500G
Brand: Fluka

In stock

€128.97
Product Image of HYDRANAL Chloroform Solvent for KF titration, Glass Bottle, 6 x 1L
HYDRANAL Chloroform Solvent for KF titration, Glass Bottle, 6 x 1L
Item number: FL37863-6X1L
Brand: Fluka

In stock

€542.40
Product Image of HYDRANAL Chloroform Solvent for KF titration, Glass Bottle, 1 L
HYDRANAL Chloroform Solvent for KF titration, Glass Bottle, 1 L
Item number: FL37863-1L
Brand: Fluka

In stock

€104.00
Product Image of HYDRANAL Buffer Base Buffer substance for KF titration, Glass Bottle, 6 x 1L
HYDRANAL Buffer Base Buffer substance for KF titration, Glass Bottle, 6 x 1L
Item number: FL37859-6X1L
Brand: Fluka

In stock

€644.55
Product Image of HYDRANAL Buffer Base Buffer substance for KF titration, Glass Bottle, 1 L
HYDRANAL Buffer Base Buffer substance for KF titration, Glass Bottle, 1 L
Item number: FL37859-1L
Brand: Fluka

In stock

€123.49
Product Image of HYDRANAL Moisture Test Kit Test kit, the visual water determination KF without titrator, 1pc
HYDRANAL Moisture Test Kit Test kit, the visual water determination KF without titrator, 1pc
Item number: FL37858-1EA
Brand: Fluka
€346.23
Product Image of HYDRANAL LipoSolver MH reag., volum. one-comp. KF Tit. in non-polar subst., Glass Bottle, 6 x 1 L
HYDRANAL LipoSolver MH reag., volum. one-comp. KF Tit. in non-polar subst., Glass Bottle, 6 x 1 L
Item number: FL37856-6X1L
Brand: Fluka

In stock

€633.44
Product Image of HYDRANAL LipoSolver MH reag., volum. one-comp. KF Tit. in non-polar subst., Glass Bottle, 1 L
HYDRANAL LipoSolver MH reag., volum. one-comp. KF Tit. in non-polar subst., Glass Bottle, 1 L
Item number: FL37856-1L
Brand: Fluka

In stock

€121.13
Product Image of HYDRANAL LipoSolver CM reag., volum. one-comp. KF Tit. in non-polar subst., Glass Bottle, 6 x 1L
HYDRANAL LipoSolver CM reag., volum. one-comp. KF Tit. in non-polar subst., Glass Bottle, 6 x 1L
Item number: FL37855-6X1L
Brand: Fluka

In stock

€658.11
Product Image of HYDRANAL LipoSolver CM reag., volum. one-comp. KF Tit. in non-polar subst., Glass Bottle, 1 L
HYDRANAL LipoSolver CM reag., volum. one-comp. KF Tit. in non-polar subst., Glass Bottle, 1 L
Item number: FL37855-1L
Brand: Fluka

In stock

€121.13
Product Image of HYDRANAL Methanol Rapid reagent, accelerated volum. one-component KF Tit., Glass Bottle, 6 x 1 L
HYDRANAL Methanol Rapid reagent, accelerated volum. one-component KF Tit., Glass Bottle, 6 x 1 L
Item number: FL37817-6X1L
Brand: Fluka

In stock

€315.25
Product Image of HYDRANAL Methanol Rapid reagent, accelerated volum. one-compon. KF Tit., Glass Bottle, 4 x 2.5 L
HYDRANAL Methanol Rapid reagent, accelerated volum. one-compon. KF Tit., Glass Bottle, 4 x 2.5 L
Item number: FL37817-4X2.5L
Brand: Fluka

In stock

€505.37
Product Image of HYDRANAL Methanol Rapid reagent, accelerated volum. one-component KF Tit., Glass Bottle, 2.5 L
HYDRANAL Methanol Rapid reagent, accelerated volum. one-component KF Tit., Glass Bottle, 2.5 L
Item number: FL37817-2.5L
Brand: Fluka

In stock

€145.19
Product Image of HYDRANAL Methanol Rapid, Glass Bottle, 1 L
HYDRANAL Methanol Rapid, Glass Bottle, 1 L
Item number: FL37817-1L
Brand: Fluka

In stock

€60.21
Product Image of Karl Fischer reagent sol. B, pyridine-based volum. KF titrat. (iodine, Methanol), Glass Bottle, 1 L
Karl Fischer reagent sol. B, pyridine-based volum. KF titrat. (iodine, Methanol), Glass Bottle, 1 L
Item number: FL36117-1L
Brand: Fluka

In stock

€146.53
Product Image of KF Reagent Solution A, pyridine-based volum. KF Tit., Glass Bottle, 6 x 1 L
KF Reagent Solution A, pyridine-based volum. KF Tit., Glass Bottle, 6 x 1 L
Item number: FL36116-6X1L
Brand: Fluka

In stock

€660.84
Product Image of KF Reagent Solution A, pyridine-based volum. KF Tit., Glass Bottle, 1 L
KF Reagent Solution A, pyridine-based volum. KF Tit., Glass Bottle, 1 L
Item number: FL36116-1L
Brand: Fluka

In stock

€126.36
Product Image of Karl-Fischer reagent for pyridine-based volumetric one-component KF titration, Glass Bottle, 1 L
Karl-Fischer reagent for pyridine-based volumetric one-component KF titration, Glass Bottle, 1 L
Item number: FL36115-1L
Brand: Fluka

In stock

€154.41
Product Image of HYDRANAL Coulomat Oil reagent for coulometric KF Tit. in oils, Glass Bottle, 6 x 500ml
HYDRANAL Coulomat Oil reagent for coulometric KF Tit. in oils, Glass Bottle, 6 x 500ml
Item number: FL34868-6X500ML
Brand: Fluka

In stock

€796.63
Product Image of HYDRANAL Coulomat Oil reagent for coulometric KF Tit. in oils, Glass Bottle, 6 x 100ml
HYDRANAL Coulomat Oil reagent for coulometric KF Tit. in oils, Glass Bottle, 6 x 100ml
Item number: FL34868-6X100ML
Brand: Fluka

In stock

€264.55
Product Image of HYDRANAL Coulomat Oil reagent for coulometric KF Tit. in oils, Glass Bottle, 500 ml
HYDRANAL Coulomat Oil reagent for coulometric KF Tit. in oils, Glass Bottle, 500 ml
Item number: FL34868-500ML
Brand: Fluka

In stock

€152.71
Product Image of HYDRANAL Coulomat Oil reagent for coulometric KF Tit. in oils, Glass Bottle, 100 ml
HYDRANAL Coulomat Oil reagent for coulometric KF Tit. in oils, Glass Bottle, 100 ml
Item number: FL34868-100ML
Brand: Fluka

In stock

€50.91
Product Image of HYDRANAL Water Standard 10.0 standard, Karl Fischer titrat. (water content 10 mg/g = 1.0%), 6x80ml
HYDRANAL Water Standard 10.0 standard, Karl Fischer titrat. (water content 10 mg/g = 1.0%), 6x80ml
Item number: FL34849-6X80ML
Brand: Fluka

In stock

€544.90
Product Image of HYDRANAL Water Standard 0.1 standard, Karl Fischer titrat. (water content 0.1 mg/g = 0.01%), 6x40ml
HYDRANAL Water Standard 0.1 standard, Karl Fischer titrat. (water content 0.1 mg/g = 0.01%), 6x40ml
Item number: FL34847-6X40ML
Brand: Fluka

In stock

€517.55
Product Image of HYDRANAL Water Standard 0.1 standard, Karl Fischer titrat. (water content 0.1 mg/g = 0.01%), 40ml
HYDRANAL Water Standard 0.1 standard, Karl Fischer titrat. (water content 0.1 mg/g = 0.01%), 40ml
Item number: FL34847-40ML
Brand: Fluka

In stock

€99.13
Product Image of HYDRANAL Coulomat AG-H reagent, coulom. KF Tit. long-chained hydrocarbon, Glass Bottle, 6 x 500 ml
HYDRANAL Coulomat AG-H reagent, coulom. KF Tit. long-chained hydrocarbon, Glass Bottle, 6 x 500 ml
Item number: FL34843-6X500ML
Brand: Fluka

In stock

€942.71
Product Image of HYDRANAL Coulomat AG-H, Glass Bottle, 500 ml
HYDRANAL Coulomat AG-H, Glass Bottle, 500 ml
Item number: FL34843-500ML
Brand: Fluka

In stock

€181.19
Product Image of HYDRANAL Coulomat CG reagent for coulometric KF titration (catholyte solution), 6 x 50ml
HYDRANAL Coulomat CG reagent for coulometric KF titration (catholyte solution), 6 x 50ml
Item number: FL34840-6X50ML
Brand: Fluka

In stock

€790.00
Product Image of HYDRANAL Coulomat AG reagent for coulometric KF titration (anolyte sol.), Glass Bottle, 6 x 500ml
HYDRANAL Coulomat AG reagent for coulometric KF titration (anolyte sol.), Glass Bottle, 6 x 500ml
Item number: FL34836-6X500ML
Brand: Fluka

In stock

€766.88
Product Image of HYDRANAL Coulomat AG reagent for coulometric KF titration (anolyte sol.), Glass Bottle, 6 x 1L
HYDRANAL Coulomat AG reagent for coulometric KF titration (anolyte sol.), Glass Bottle, 6 x 1L
Item number: FL34836-6X1L
Brand: Fluka

In stock

€1,292.45
Product Image of HYDRANAL Coulomat AG, Glass Bottle, 500 ml
HYDRANAL Coulomat AG, Glass Bottle, 500 ml
Item number: FL34836-500ML
Brand: Fluka

In stock

€152.64
Product Image of HYDRANAL Coulomat AG reagent for coulometric KF titration (anolyte sol.), Glass Bottle, 1 L
HYDRANAL Coulomat AG reagent for coulometric KF titration (anolyte sol.), Glass Bottle, 1 L
Item number: FL34836-1L
Brand: Fluka

In stock

€256.71
Product Image of HYDRANAL Coulomat AF 7 for coulometer AF7, Glass Bottle, 6 x 1L
HYDRANAL Coulomat AF 7 for coulometer AF7, Glass Bottle, 6 x 1L
Item number: FL34829-6X1L
Brand: Fluka

In stock

€1,385.33
Product Image of HYDRANAL Coulomat AF 7 for coulometer AF7, Glass Bottle, 1 L
HYDRANAL Coulomat AF 7 for coulometer AF7, Glass Bottle, 1 L
Item number: FL34829-1L
Brand: Fluka

In stock

€264.55
Product Image of HYDRANAL Water Standard 1.0 standard, Karl Fischer titrat. (water content 1 mg/g = 0.1%), 6x40ml
HYDRANAL Water Standard 1.0 standard, Karl Fischer titrat. (water content 1 mg/g = 0.1%), 6x40ml
Item number: FL34828-6X40ML
Brand: Fluka

In stock

€517.55

Fundamentals - One & Two Component Reagents

As mentioned aforehand, the reagents based on the Karl Fischer method are to be divided into two different groups. On the one hand, there are so-called one-component reagents which are particularly suitable for the volumetric Karl Fischer titration of water. They include all components such as iodine, sulfur dioxide and imidazole (dissolved in alcohol). Great popularity among users experiences this type of reagents especially because of its easy handling since the components are already mixed to a singular solution. On the other hand there are two-component reagents which are build up slightly differently. Just like the one-component variant, they contain all the needed ingredients, however, divided into two separate solutions. This consists of a solution of sulfur dioxide, imidazole and methanol and a titrant - consisting of iodine and a water equivalent titrant. Both solutions are needed for the volumetric Karl Fischer titration and because of the separate solutions, the two-component version is slightly more complex.