1. HYDRANAL - Titrant/Solvent
The two-component reagent was developed to exploit the stability advantage of pure iodine solution in alcohol. In addition, the buffer solution delivers very fast titration performance.

2. Composition
- In the two-component reagent, the Karl Fischer reagents are split into two solutions: the titrant and the solvent.
- HYDRANAL Titrant contains iodine dissolved in alcohol at a precisely defined concentration.
- HYDRANAL Solvent is an alcoholic solution of sulfur dioxide and imidazole.
- The alcohol is methanol for the standard reagent or ethanol for the E type.
- Other solvent reagent types are based on different mixtures so that sample solubility requirements can be met.
3. Advantages of HYDRANAL two-component reagents
- High titration speed
- Ideal accuracy for small amounts of water
- High buffering capacity
- Accurate and stable titer
- E type reagent: lower toxicity compared with methanol
- Long shelf life (three years for the titrant, five years for the solvent)
4. HYDRANAL Titrant/Solvent two-component volumetric titration products
4.1. Methanol based
- 34811 HYDRANAL Titrant 2: two-component reagent, concentration ~2 mg/mL. Bottle sizes: 500 mL, 1 L, 2.5 L.
- 34801 HYDRANAL Titrant 5: two-component reagent, concentration ~5 mg/mL. Bottle sizes: 500 mL, 1 L, 2.5 L.
- 34800 HYDRANAL Solvent: working medium for two-component titration. Bottle sizes: 1 L, 2.5 L
4.2. Ethanol based
- 34723 HYDRANAL Titrant 2 E: two-component reagent, concentration ~2 mg/mL. Bottle size: 1 L.
- 34732 HYDRANAL Titrant 5 E: two-component reagent, concentration ~2 mg/mL. Bottle sizes: 500 mL, 1 L, 2.5 L.
- 34730 HYDRANAL Solvent E: working medium for two-component titration. Bottle sizes: 500 mL, 1 L, 2.5 L.
4.3. Special Media
- 34812 HYDRANAL Solvent CM: working medium for two-component titration, containing methanol and chloroform for titration in non-polar samples. Bottle sizes: 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. Bottle size: 1 L.
- 34697 HYDRANAL Solver (Crude) Oil: working medium containing methanol, xylene, and chloroform for titration in oil. Bottle sizes: 1 L, 2.5 L
Pacific Scientific & Technical Equipment Company Limited is proud to be the official supplier of Hydranal chemicals and reagents (Honeywell Fluka brand) in Vietnam. The Hydranal catalog is always diverse, stock is always on hand, delivery service is attentive. Our pricing policy in particular is exceptionally good. You can look at the products we supply in detail at the following link:

