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104907 Potassium bromide


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

Key Specifications Table

CAS #EC NumberHill FormulaChemical FormulaMolar Mass
7758-02-3231-830-3BrKKBr119.01 g/mol


Catalog NumberPackaging Qty/Pack
1049070100 Glass bottle 100 g
1049070500 Glass bottle 500 g
Catalogue Number104907
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.
Product Information
CAS number7758-02-3
EC number231-830-3
Hill FormulaBrK
Chemical formulaKBr
Molar Mass119.01 g/mol
HS Code2827 51 00
Quality LevelMQ100
Biological Information
Physicochemical Information
Boiling point1435 °C (1013 hPa)
Density2.750 g/cm3
Melting Point734 °C
pH value5.0 - 6 (119 g/l, H₂O, 25 °C)
Vapor pressure1.3 hPa (795 °C)
Bulk density900 - 1000 kg/m3
Solubility650 g/l
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)P264: Wash skin thoroughly after handling.
P280: Wear eye protection/ face protection.
P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P337 + P313: If eye irritation persists: Get medical advice/ attention.
Signal WordWarning
Storage class10 - 13 Other liquids and solids
WGKWGK 1 slightly hazardous to water
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
Categories of dangerirritant
Product Usage Statements
Storage and Shipping Information
StorageStore at +2°C to +30°C.
Packaging Information
Transport Information
Supplemental Information
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
Global Trade Item Number
Catalog Number GTIN
1049070100 04022536056852
1049070500 04022536056876