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Potassium bromide spectral pure powder KBr-F
Matters need attention
The infrared spectrum used in analytical chemistry is the mid-infrared region, that is, thewave range of 4000~400cm-1.Potassium bromide (KBr) is not absorbed in the mid-infraredregion, and its use for tablet determination does not interfere with the sample signal."
Precautions for pure measurement of solid samples by potassium bromidespectrum ininfrared spectrum:First: purity, up to the level of spectral purity;Second: dry, can not contain water, Usually put it in the dryer and replace the desiccantin time
Third: When the tablet is operated under the infrared lamp, it is also to avoid absorbingwater
The potassium bromide (KBr) window and crystal produced by our company have a hightransmittance and a wide transmission band, the purity can reach 99.99%, and are widelyused in Fourier transform infrared spectrometer, infrared spectrophotometer and infrareddevice splitting prism, transmission window and lens.
Product Description
| Refractive index | nd=1.559, n(10 μ)=1.525 |
| Melting point | 730 ℃ |
| Density | 2.75g/cm³ |
| Moh's hardness | Level 2 |
| Cleavage plane | [100] |
| Solubility | 53.5g/100g H₂O |
| Transmittance range | 0.2 ~ 25 μm |
| Coefficient of thermal expansion | 3.76 × 10⁻⁵ /℃ |
| Thermal conductivity | 0.0115 c/g·℃·cm·s |
| The transmittance is greater than 92% | |
| Easy deliquescence, transmitted wavelength 50,000 - 400 cm⁻¹, (0.2 ~ 25 μm) | |
