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AQUA 40.00 - Solid Module

AQUA 40.00 with Solid Module
AQUA 40.00 - Basic Module
coupled with Solid Module
Closed-loop carrier gas circulation in the AQUA 40.00
Closed-loop carrier gas

Water content of solid and pasty samples

The gas extraction is the ideal method to detect water content in solid and pasty substances. For this analysis, the Solid Module is combined with the Basic Module of AQUA 40.00.

The measurement of trace amounts of water is possible with the special heating chamber for solid and pasty samples. The sample has no contact with the reagent. Therefore the consumption of reagent is low.

The sample is appplied into a sample container. So it is possible to analyse small sample amounts (down to 1 mg). The sample container is heated out in the solid chamber with temperature program or isothermal heating depending on the consistency of sample. The measurement of water content is based upon the titration according to Karl Fischer. After analysis, the used sample container is ejected from the heating chamber into collecting vessel.

With closed-loop carrier gas circulation, any additional gas drying is no longer necessary: the carrier gas is continually titrated to dryness within the closed loop. The total dryness of the gas enhances the water desorption from the sample. Moreover, sensitive samples can be heated out very gently. Degradations and side reactions are eliminated.

Heating with temperature programm, you can distinguish between various types of bonded water.

This video shows the principle of closed-loop carrier gas circulation of AQUA 40.00 with Solid Module:


  • Fats and tar products
  • Paper, wood and timber
  • Pigments and soaps
  • Pharmaceuticals
  • Inorganic salts
  • Fertilizer
  • Colorants
  • Plastics
  • Food


  • Closed-loop carrier gas circulation
  • No contact of sample with the reagent
  • Low consumption of reagent
  • Wide range of application
  • No sample preparation
  • For small sample amounts (from 1 mg)
  • Moisture determination down to 0.001 %
  • Short measuring time
  • Small blank values
  • Heating with temperature program or isothermal heating
  • Software complies with requirements of FDA

Data sheet AQUA 40.00

Data sheet Solid Module


ECH Elektrochemie Halle GmbH
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06120 Halle (Saale)

Tel.: +49 345 279570-0
Fax: +49 345 279570-99
Mail: info@ech.de

Sales and Service Center UK

ECH Scientific Limited
Building 69, Wrest Park, Silsoe
Bedfordshire, MK45 4HS
United Kingdom

Tel.: +44 1525 404747
Fax: +44 1525 404848
Mail: info@ech.de