Zentrum für Glas- und Umweltanalytik GmbH, Hohe Straße 45, 98693 Ilmenau
Tel.: +49-(0) 3677-8452-0

Determination of OH-concentration

In glasses the concentration of OH-groups presents in certain fields of application (f. ex. lamps) a crucial parameter. In case of high temperatures during the glass’ usage the OH-groups can be dissolved out by diffusion. The OH-groups can trigger off reactions with further components of the apparatus (f. ex. metal electrodes) influencing the gadget’s persistence.

The determination of the OH-concentration is performed by IR- spectroscopy with a wave length of 2800 nm. Two-sided polished and plane parallel sheets are used.

(Samples: plane parallel sheet, polished on both sides, 30×20 mm, thickness: 1-10 mm, tube section is possible)