Potassium bromide, Uvasol® for FT-IR spectroscopy, Supelco®
Supplier: MilliporeSigma
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Warning
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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 analyzed 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 air-tight condition. Its physical suitability for pelletising is checked by a special application test and its chemical purity established by full spectrum FT-IR analysis.
Formula:
KBr MW: 119 g/mol Boiling Pt: 1435 °C (1013 hPa) Melting Pt: 730 °C Density: 2.75 g/cm³ (20 °C) |
MDL Number:
MFCD00011358 CAS Number: 7758-02-3 Merck Index: 13,07701 |
Specification Test Results
Solubility | 650 g/l (20 °C) |
Melting Point | 730 °C |
Molar Mass | 119.00 g/mol |
Bulk Density | 900 - 1000 kg/m3 |
Boiling Point | 1435 °C |
Vapor Pressure | 1.3 hPa (795 °C) |
Density | 2.75 g/cm3 (20 °C) |
pH | 5.5 - 8.5 (50 g/l, H2O, 20 °C) |
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