Knowledge Why KBr is Used in the KBr Pellet Method? 4 Key Reasons Explained
Author avatar

Tech Team · Kintek Solution

Updated 1 month ago

Why KBr is Used in the KBr Pellet Method? 4 Key Reasons Explained

KBr is used in the KBr pellet method primarily because of its properties as an alkali halide.

These properties allow it to become plastic under pressure and form a transparent sheet in the infrared region.

This transparency is crucial for infrared spectroscopy applications.

Infrared spectroscopy requires the sample to be visible to the infrared light for analysis.

4 Key Reasons Explained

Why KBr is Used in the KBr Pellet Method? 4 Key Reasons Explained

1. Explanation of KBr's Properties

Potassium bromide (KBr) is chosen for this method due to its unique physical properties.

When subjected to pressure, KBr becomes plastic, allowing it to be easily formed into a pellet or disk.

This transformation is essential for preparing samples in a form that is suitable for infrared spectroscopy.

The resulting KBr pellet is transparent in the infrared region.

This means it does not absorb or interfere with the infrared light that is used to analyze the sample.

This transparency ensures that the infrared light can pass through the sample effectively, providing clear and accurate spectral data.

2. Application in Infrared Spectroscopy

The KBr pellet method is extensively used in infrared spectroscopy for analyzing solid samples.

The method involves mixing the solid sample with KBr in a specific ratio.

Typically, the sample concentration in KBr is 0.2 to 1 percent.

Then, pressing this mixture under high pressure to form a pellet.

The low concentration of the sample in KBr is necessary because the pellet is thicker than a liquid film.

A higher concentration could lead to absorption or scattering of the IR beam, resulting in noisy spectra.

3. Advantages Over Other Techniques

Compared to newer techniques like attenuated total reflectance (ATR), the KBr pellet method offers the advantage of being able to adjust the pathlength of the compound of interest.

This adjustment can be crucial for obtaining the best possible spectral data.

Especially for samples that may vary in their interaction with infrared light.

The method is also favored for its simplicity and effectiveness in handling small samples.

Making it ideal for laboratories engaged in various fields such as pharmaceutical, biological, and nutritional research.

4. Summary of Benefits

In summary, KBr is used in the KBr pellet method because it forms transparent, pressure-formed pellets that are ideal for infrared spectroscopy.

This method is advantageous due to its adaptability in adjusting the pathlength and its effectiveness in analyzing solid samples.

Making it a valuable tool in scientific research and analysis.

Continue exploring, consult our experts

Discover the superior KBr pellet solutions that drive precision in your infrared spectroscopy analysis.

At KINTEK SOLUTION, we pride ourselves on providing top-quality KBr materials, essential for forming clear, transparent pellets that ensure optimal performance in your research.

With our KBr pellets, you can enhance your spectral data and streamline your laboratory workflows.

Elevate your scientific endeavors with KINTEK SOLUTION’s reliable, high-purity KBr products and join the ranks of leading research institutions worldwide.

Experience the difference in quality and innovation—choose KINTEK SOLUTION for your laboratory needs!

Related Products

kbr pellet press 2T

kbr pellet press 2T

Introducing the KINTEK KBR Press - a handheld laboratory hydraulic press designed for entry-level users.

Automatic Lab XRF & KBR Pellet Press 30T / 40T / 60T

Automatic Lab XRF & KBR Pellet Press 30T / 40T / 60T

Fast and easy xrf sample pellet preparation with KinTek Automatic Lab Pellet Press. Versatile and accurate results for X-ray fluorescence analysis.

Electric Hydraulic Pellet Press for XRF & KBR 20T / 30T / 40T / 60T

Electric Hydraulic Pellet Press for XRF & KBR 20T / 30T / 40T / 60T

Efficiently prepare samples with the Electric Hydraulic Press. Compact and portable, it's perfect for labs and can work in a vacuum environment.

Optical ultra-clear glass sheet for laboratory K9 / B270 / BK7

Optical ultra-clear glass sheet for laboratory K9 / B270 / BK7

Optical glass, while sharing many characteristics with other types of glass, is manufactured using specific chemicals that enhance properties crucial for optics applications.

Hybrid High Energy Vibratory Ball Mill

Hybrid High Energy Vibratory Ball Mill

KT-BM400 is used for rapid grinding or mixing of dry, wet and frozen small amount of samples in the laboratory. It can be configured with two 50ml ball mill jars

Mesh belt controlled atmosphere furnace

Mesh belt controlled atmosphere furnace

Discover our KT-MB mesh belt sintering furnace - perfect for high-temperature sintering of electronic components & glass insulators. Available for open air or controlled atmosphere environments.

Liquid nitrogen cryogenic vibration ball mill

Liquid nitrogen cryogenic vibration ball mill

Kt-VBM100 is a laboratory desktop high-performance vibrating ball mill and sieving dual-purpose small and lightweight instrument. The vibrating platform with a vibration frequency of 36,000 times/min provides energy.

Infrared Silicon / High Resistance Silicon / Single Crystal Silicon Lens

Infrared Silicon / High Resistance Silicon / Single Crystal Silicon Lens

Silicon (Si) is widely regarded as one of the most durable mineral and optical materials for applications in the near-infrared (NIR) range, approximately 1 μm to 6 μm.

Electric activated carbon regeneration furnace

Electric activated carbon regeneration furnace

Revitalize your activated carbon with KinTek's Electric Regeneration Furnace. Achieve efficient and cost-effective regeneration with our highly automated rotary kiln and intelligent thermal controller.

Electric rotary kiln pyrolysis furnace plant pyrolysis machine electric rotary calciner

Electric rotary kiln pyrolysis furnace plant pyrolysis machine electric rotary calciner

Electric rotary kiln - precisely controlled, it's ideal for calcination and drying of materials like lithium cobalate, rare earths, and non-ferrous metals.

XRF & KBR steel ring lab Powder Pellet Pressing Mold

XRF & KBR steel ring lab Powder Pellet Pressing Mold

Produce perfect XRF samples with our steel ring lab powder pellet pressing mold. Fast tableting speed and customizable sizes for accurate molding every time.

High energy Planetary Ball Mill

High energy Planetary Ball Mill

The high-energy planetary ball mill KT-BMP2000 can not only perform fast and effective grinding, but also has good crushing ability. It can crush and grind hard samples with large particle size, which can meet more processing needs of users.

Optical Windows

Optical Windows

Diamond optical windows: exceptional broad band infrared transparency, excellent thermal conductivity & low scattering in infrared, for high-power IR laser & microwave windows applications.

Zinc sulfide (ZnS) window

Zinc sulfide (ZnS) window

Optics Zinc Sulphide (ZnS) Windows have an excellent IR transmission range between 8-14 microns.Excellent mechanical strength and chemical inertness for harsh environments (harder than ZnSe Windows)

barium fluoride (BaF2) substrate / window

barium fluoride (BaF2) substrate / window

BaF2 is the fastest scintillator, sought-after for its exceptional properties. Its windows and plates are valuable for VUV and infrared spectroscopy.

High temperature resistant optical quartz glass sheet

High temperature resistant optical quartz glass sheet

Discover the power of optical glass sheets for precise light manipulation in telecommunications, astronomy, and beyond. Unlock advancements in optical technology with exceptional clarity and tailored refractive properties.

Zinc selenide(ZnSe) window / substrate / optical lens

Zinc selenide(ZnSe) window / substrate / optical lens

Zinc selenide is formed by synthesizing zinc vapor with H2Se gas, resulting in sheet-like deposits on graphite susceptors.

Electron Beam Evaporation Graphite Crucible

Electron Beam Evaporation Graphite Crucible

A technology mainly used in the field of power electronics. It is a graphite film made of carbon source material by material deposition using electron beam technology.

Infrared transmission coating sapphire sheet / sapphire substrate / sapphire window

Infrared transmission coating sapphire sheet / sapphire substrate / sapphire window

Crafted from sapphire, the substrate boasts unparalleled chemical, optical, and physical properties. Its remarkable resistance to thermal shocks, high temperatures, sand erosion, and water sets it apart.

Optical quartz plate JGS1 / JGS2 / JGS3

Optical quartz plate JGS1 / JGS2 / JGS3

The quartz plate is a transparent, durable, and versatile component widely used in various industries. Made from high-purity quartz crystal, it exhibits excellent thermal and chemical resistance.


Leave Your Message