Volumetric Karl Fischer Titration
Explore the many benefits of the broadest portfolio of one- and two-component volumetric reagents.
Our broad selection includes:
- Hydranal-Methanol Rapid containing accelerators to speed up titration with one-component reagents
- Hydranal E-Type reagents based on ethanol for safer titrations
- Hydranal-Medium K as a less toxic alternative for the determination of water in aldehydes and ketones
Advantages of Hydranal one-component reagents:
- Unlimited water capacity
- Convenient and easy to use
- The greatest flexibility in working media selection
- Suitable for methanol-reacting compounds, e.g. ketones and aldehydes
- Long shelf life (three years)
Improved Composition
Hydranal-Composite contains all the reactants including iodine, sulfur dioxide, and the bases imidazole and 2-methylimidazole, dissolved in diethylene glycol monoethyl ether (DEGEE). Adding 2-methylimidazole in addition to imidazole improves the stability and eliminates the formation of crystals which can interfere with the titrator’s performance.
Advantages of Hydranal two-component reagents:
- High titration speed
- Ideal accuracy for small amounts of water
- High buffer capacity
- Exact and stable titer
- E-type reagents: reduced toxicity compared to methanol
- Long shelf life (three years for titrants, five years for solvents)
Composition
In two-component reagents the Karl Fisher reactants are separated into two solutions: the titrant and the solvent. Hydranal-Titrant contains iodine dissolved in an alcohol with a precisely defined concentration. Hydranal-Solvent is an alcoholic solution of sulfur dioxide and imidazole.
The alcohol is either methanol for standard reagents or ethanol for E-type reagents.
| Product Number | Product Name | Description | Packaging |
|---|---|---|---|
| 34827 | HYDRANAL-Composite 1 | One-component reagent, titer ~1 mg/mL | 500 mL; 1 L |
| 34806 | HYDRANAL-Composite 2 | One-component reagent, titer ~2 mg/mL | 500 mL; 1 L; 2.5 L |
| 34805 | HYDRANAL-Composite 5 | One-component reagent, titer ~5 mg/mL | 500ml; 1 L; 2.5 L |
| 34816 | HYDRANAL-Composite 5 | K One-component reagent for titration of ketones and aldehydes, titer ~5 mg/mL | 500 mL; 1 L; 2.5 L |
| 37817 | HYDRANAL-Methanol Rapid | Medium containing accelerators | 1 L; 2.5 L |
| 34741 | HYDRANAL-Methanol | Dry Medium for general use | 1 L; 2.5 L |
| 34734 | HYDRANAL-CompoSolver E | Ethanol-based medium containing accelerators | 1 L; 2.5 L |
| 34697 | HYDRANAL-Solver (Crude) Oil | Working medium containing methanol, xylene and chloroform for titration in oils | 1 L; 2.5 L |
| 37855 | HYDRANAL-LipoSolver CM | Working medium containing methanol and chloroform for titration in non-polar samples | 1 L |
| 37856 | HYDRANAL-LipoSolver MH | Working medium containing methanol and 1-hexanol for titration in non-polar samples | 1 L |
| 34698 | HYDRANAL-Medium K | Less toxic working medium containing chloroform for ketones and aldehydes | 1 L |
| 34738 | HYDRANAL-KetoSolver | Working medium free of halogenated solvents for ketones and aldehydes | 500 mL; 1 L |
| 34817 | HYDRANAL-Working Medium K | Working medium containing chloroform and 2-chloroethanol for ketones and aldehydes | 1 L |
| Methanol Based | |||
| 34811 | HYDRANAL-Titrant 2 | Two-component reagent, titer ~2 mg/mL | 500 mL; 1 L; 2.5 L |
| 34801 | HYDRANAL-Titrant 5 | Two-component reagent, titer ~5 mg/mL | 500 mL; 1 L; 2.5 L |
| 34800 | HYDRANAL-Solvent | Working medium for two-component titration | 1 L; 2.5 L |
| Ethanol Based | |||
| 34723 | HYDRANAL-Titrant 2 E | Two-component reagent, titer ~2 mg/mL | 1 L |
| 34732 | HYDRANAL-Titrant 5 E | Two-component reagent, titer ~5 mg/mL | 500 mL; 1 L; 2.5 L |
| 34730 | HYDRANAL-Solvent E | Working medium for two-component titration | 500 mL; 1 L; 2.5 L |
| Special Media | |||
| 34812 | HYDRANAL-Solvent CM | Working medium for two-component titration, containing methanol and chloroform for titration in non-polar samples | 1 L; 2.5 L |
| 34749 | HYDRANAL-Solvent Oil | Working medium for two-component titration, containing methanol and 1-hexanol for titration in non-polar samples | 1 L |
| 34697 | HYDRANAL-Solver (Crude) Oil | Working medium containing methanol, xylene and chloroform for titration in oils | 1 L; 2.5 L |
