Potassium bromide
About This Item
Linear Formula:
KBr
CAS Number:
7758-02-3
Molecular Weight:
119.00
General 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 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.
Quality Segment: 100
Form: Solid
Potency: >2000 mg/kg LD50, oral (Rat)
Sustainability: Sustainability features
Techniques: IR spectroscopy: suitable
pH: 5.5-8.5 (20 °C, 50 g/L in H2O)
Boiling Point: 1435 °C/1013 hPa
Melting Point: 730 °C
Solubility: water: soluble (119 g/l at 20 °C (68 °F))
Density: 2.75 g/cm3 at 20 °C
Bulk Density: 900-1000 kg/m3
Applications: general analytical
Storage Temperature: 2-30°C
