Aquastar® Karl Fischer reagents and standards ensure rapid, precise, and consistent results for water determination in solid, liquid, and gas samples. Our Aquastar® product portfolio includes reagents for volumetric and coulometric methods. Aquastar® water standards are available as certified reference materials according to ISO 17034 for a precise titer determination, instrument check, and the verification of titration results.
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Karl Fischer Titration Video Series
Brochure: Aquastar® Reagents for Brilliant Karl Fischer Titration Results
DEA Requirement to Purchase Karl Fischer Reagents (Only for North America)
Supelco Smart Chemicals Reagents for Titration and Karl Fischer Titration
3s Reagents for Volumetric Titration
The volumetric Karl Fischer titration method is used to determine water content by adding iodine containing titrant to the sample, which is then dissolved or dispersed in a suitable solvent. This method is recommended for higher water content (from 100 ppm to 100%) and promotes fast, precise, and reproducible results with high titration rates. We differentiate between one and two-component titration.
Coulometric Karl Fischer Titration is preferred for liquid samples with very low water content (10 ppm – 10.000 ppm). Our Aquastar range of coulometric Karl Fischer reagents is available for titration cells with and without a diaphragm. Our coulometric reagents CombiCoulomat frit, CombiCoulomat fritless, and Anolyte for coulometric Karl Fischer titration without diaphragm are free from chloroform for precise results. For your convenience, our combined CombiCoulomat frit and CombiCoulomat fritless reagents contain all reaction components in a single solution and can be used for both anode and cathode cells. We also offer special methanol-free reagents for aldehyde and ketone samples. Our Anolyte K and Catholyte K reagents are designed to determine exact water contents in aldehydes and ketones samples.
The Aquastar® portfolio contains a broad range of excellent water standards for titer determination, monitoring Karl Fischer equipment, and verifying measuring results. Our water standards are certified reference materials in accordance with ISO 17034 and measured using validated procedures in our DIN EN ISO/IEC 17025 accredited laboratory. To maintain transparency, we provide a batch-specific certificate of analysis for quality management (QM) documentation.
Our innovative Supelco® titration technology enables a connection between SmartChemicals and the titrator. Our Aquastar® Karl Fischer SmartTitrants and Aquastar® SmartStandards transmit data wirelessly to the titrator. A brief touch on the SmartChemical RFID (Radio Frequency Identification) tag eliminates transmission errors, saves time, protects data, and increases efficiency.