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104907 Potassium bromide

104907
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Overview

Replacement Information
Replacement InformationIn North America 1.04907 replaces and is identical to PX1378

Key Specifications Table

CAS #EC NumberHill FormulaChemical FormulaMolar Mass
7758-02-3 231-830-3 BrK KBr 119.00 g/mol

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1049070100
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      Glass bottle 100 g
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      1049070500
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          Glass bottle 500 g
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          Description
          Catalogue Number104907
          ReplacesPX1378
          SynonymsHydrobromic Acid Potassium Salt
          OverviewPotassium 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.
          References
          Product Information
          CAS number7758-02-3
          EC number231-830-3
          Hill FormulaBrK
          Chemical formulaKBr
          Molar Mass119.00 g/mol
          HS Code2827 51 00
          Quality LevelMQ100
          Applications
          Biological Information
          Physicochemical Information
          Boiling point1435 °C (1013 hPa)
          Density2.75 g/cm3 (20 °C)
          Melting Point730 °C
          pH value5.5 - 8.5 (50 g/l, H₂O, 20 °C)
          Vapor pressure1.3 hPa (795 °C)
          Bulk density900 - 1000 kg/m3
          Solubility650 g/l
          Dimensions
          Materials Information
          Toxicological Information
          LD 50 oralLD50 Rat > 2000 mg/kg
          Safety Information according to GHS
          Hazard Pictogram(s) Hazard Pictogram(s)
          Hazard Statement(s)H319: Causes serious eye irritation.
          Precautionary Statement(s)P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
          Signal WordWarning
          RTECSTS7650000
          Storage class10 - 13 Other liquids and solids
          WGKWGK 1 slightly hazardous to water
          Disposal14
          Inorganic salts: Container I. Neutral solutions of the these salts: Container D. Before placing in Container D, check the pH with pH-Universal indicator strips (Item No. 109535).
          Safety Information
          Hazard Symbols Hazard SymbolsIrritant
          Categories of dangerirritant
          R PhraseR 36
          Irritating to eyes.
          Product Usage Statements
          Storage and Shipping Information
          StorageStore at +2°C to +30°C.
          Packaging Information
          Transport Information
          Supplemental Information
          Specifications
          Application testpasses 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)≤ 150 µm
          Particle Size (d50)≤ 250 µm
          Particle Size (d90)≤ 500 µm