Merck 104907 Potassium bromide for IR spectroscopy Uvasol 100 Gr

Katalog No: 104907.0100

Marka: Merck

2.358,00 ₺
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Merck 104907 Potassium bromide for IR spectroscopy Uvasol®

Synonyms: Hydrobromic Acid Potassium Salt

CAS #: 7758-02-3

EC Numarası: 231-830-3

Molar Kütle: 119.01 g/mol

Kimyasal Formül: KBr

Tepe Formülü: BrK

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Merck 104907 Potassium bromide for IR spectroscopy Uvasol®

 

Temel Özellikler Tablosu

CAS #EC NumarasıTepe FormülüKimyasal FormülMolar Kütle
7758-02-3231-830-3BrKKBr119.01 g/mol

 

Açıklama
Katalog Numarası104907
ReplacesPX1378
Eş anlamlıHydrobromic Acid Potassium Salt
Genel BakışPotassium 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.

 

Ürün Bilgisi
CAS Numarası7758-02-3
EC Numarası231-830-3
Tepe FormülüBrK
Kimyasal FormülKBr
Molar Kütle119.01 g/mol
HS Kodu2827 51 00
Quality LevelMQ100

 

Fizikokimyasal Bilgiler
Kaynama Noktası1435 °C (1013 hPa)
Yoğunluk2.750 g/cm3
Erime Noktası734 °C
pH Değeri5.0 - 6 (119 g/l, H₂O, 25 °C)
Buhar basıncı1.3 hPa (795 °C)
Kütle yoğunluğu900 - 1000 kg/m3
Çözünürlük650 g/l

 

Özellikler
Application testTesti geçer
Absorbance(2g pressed disk, 0.5 cm layer thickness)(Su; 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
104907.0100

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