KBr Spectrum Pure Crystal

Features:

The spectral region of FIR spectroscopy used in analytical chemistry is the mid-infrared region, that is, the range of waves from 4000 to 400 cm-1.

Potassium bromide (KBr) has no absorption in the mid-infrared region, and it will not interfere with the sample signal when it is used for tablet determination. 

Precautions for pure determination of solid samples by potassium bromide spectrum in infrared spectrum:

1. Purity, reaching the level of spectral purity;

2. Dry, can not contain water. Usually put in the desiccator, replace the desiccant in time

3. Operate under the infrared light when pressing the tablet to avoid absorbing water

The potassium bromide (KBr) produced by our company is spectrally pure, the crystal has a high transmittance and a wide transmission band, and the purity can reach 99.99%. It is widely used in Fourier transform infrared spectrometers, infrared spectrophotometers and infrared The beam splitter prism, transmission window and lens of the device.

technical parameter

1. Refractive index: nd=1.559, n(10μ)=1.525

2. Melting point: 730℃

3. Density: 2.75g/cm3

4. Mohs hardness: Level 2

5. Cleavage surface: [100]

6. Solubility: 53.5g/100gH2O

7. Light transmission range: 0.2～25μm

8. Thermal expansion coefficient: 3.76×10-5/℃

9. Thermal conductivity: 0.0115c/g.℃.cm.s.

10. The transmittance is greater than 92%

11. Easily deliquescent, transmission wavelength 50000-400cmˉ1, (0.2~25um)