Votre recherche pour: Bromure+de+calcium

112 294 les résultats ont été trouvés

Affiner les résultats Trier par

Sort Results

Vue liste Vue simple

Comparer(0) Effacer

Évaluez le résultat de cette recherche

Potassium bromure, Uvasol® pour la spectrophotométrie dans l'IR, Supelco®

Fournisseur: Merck

Description: Potassium bromide is transparent from the near UV to long wave IR wavelengths. In IR-spectroscopy, solid samples which are difficult to melt or dissolve in any suitable IR-transmitting solvent, are analysed by grinding with potassium bromide powder, and pressing into a disc. This procedure has a high quality demand of the used potassium bromide. Potassium bromide Uvasol® is adjusted to a mean particle size of 150 μm. This is sufficient for the preparation of perfectly good pellets without the need for further pre-treatment and the associated risk of contamination. It also retains its powdery form over a period of years if stored in an airtight condition. Its physical suitability for pelletising is checked by a special application test and its chemical purity established by full spectrum FT-IR analysis.

MSMD Promotion