POTASSIUM BROMIDE UVASOL 100 G

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.

Linkage

Replaces: PX1378

Analysis Note

Application test: passes test
Absorbance(2g pressed disk, 0.5 cm layer thickness)(Water; 3775-3050/1760-1520 cm⁻¹): ≤ 0.15
Absorbance(2g pressed disk, 0.5 cm layer thickness)(CH-compounds; 3050-2750 cm⁻¹): ≤ 0.004
Absorbance(2g pressed disk, 0.5 cm layer thickness)(other ; 4000-400 cm⁻¹): ≤ 0.020
Particle Size (d10): ≤ 100 µm
Particle Size (d50): ≤ 200 µm
Particle Size (d90): ≤ 500 µm

Legal Information

UVASOL is a registered trademark of Merck KGaA, Darmstadt, Germany

Molecular Weight: 119.00. Empirical Formula: BrK. vapor pressure: 1.3 hPa ( 795 °C). Quality Level: 100. form: solid. potency: >. 2000 . mg/kg LD₅₀, oral (Rat). pH: 5.5-8.5 (20 . °C, 50 . g/L in H₂O). bp: 1435 . °C/1013 . hPa. mp: 730 . °C. solubility: 650 . g/L. density: 2.75 . g/cm³ . at 20 . °C. bulk density: 900‑. 1000 . kg/m³. storage temp.: 2-30°C. InChI: 1S/BrH.K/h1H. /q. +1/p-1. InChI key: IOLCXVTUBQKXJR-UHFFFAOYSA-M. Pictograms: GHS07. Signal Word: Warning. Hazard Statements: H319. Precautionary Statements: P264 - P280 - P305 + P351 + P338 - P337 + P313. Hazard Classifications: Eye Irrit. 2. Storage Class Code: 13 - Non Combustible Solids. WGK: WGK 1. Flash Point(F): Not applicable. Flash Point(C): Not applicable.