Ideal Vacuum offers our LeakFree-IR glass gas cells with a variety of window materials and gas line connections as well as 5cm and 10cm path lengths listed on this website. Not sure of your needs? Call us at (505)872-0037 to discuss your options.
Our Ideal Vacuum infrared LeakFree-IR glass gas cells are designed to fit in all IR and Fourier Transform Infrared (FTIR) spectrometers. They are perfect for collecting low pressure IR spectra of gas phase samples. Typically, vapor pressure of 1 to 10 Torr is all that is needed to get a beautiful IR spectrum.
It is very important when shopping for a new IR gas cell that you consider how "Leak-Free" the gas cell will be. No one wants to add 10 Torr or so of sample vapor pressure to their low-pressure IR cell and see the pressure continuously rise as room air leaks in around the window seals! Our LeakFree-IR gas cells are the most "Leak-Tight" models available. The cell itself consists of a 25.4 mm (1 in.) outer diameter O-ring sealed Pyrex glass cell capped with two 38.1 mm (1.5 in.) diameter windows with #25 Viton O-rings. Each window is held in place by an industry-standard sized aluminum mounting plate that slots into a wide assortment of spectrometer cassettes. Each of our LeakFree-IR low pressure gas cells are assembled and helium leaked tested to ensure that they are a quality leak-tight product before they are shipped to our customers.
Benefits of using our LeakFree-IR Low-Pressure Gas Cells:
They are leak-tight
Each cell is helium leak tested for quality
Limit contamination of sample vapor with atmospheric gases
Limit reactions of sample vapor with atmospheric gases
Limit spectral overlap from atmospheric gas bands (e.g., H2O and CO2)
Minimize waste streams with no need to evacuate gas sample vapors into the vacuum pump
Each of our LeakFree-IR low-pressure gas cells are designed with dual gas connection stems (one for sample addition and the other for evacuation of the gas cell), allowing for easy and leak-free connections to gas fill and vacuum lines. Dual gas connection stems are especially useful in high-throughput labs that require quick gas sample changeovers to minimizes the time needed between individual gas sample analysis runs. Each of the connection stems includes a ground glass stopcock valve so the low-pressure sample vapor can be sealed inside our LeakFree-IR gas cell and isolated from the vacuum and gas fill lines. Our LeakFree-IR gas cells can be ordered with a variety of standard gas stem connection types:
Stem Type Options:
#15 O-Ring Connections
3/8 Inch OD Striaght Glass Tube Connections, Perfect For Swagelok® Ultra-Torr® and Our NVacuo O-ring Compression Fittings
1/4 Inch OD Striaght Glass Tube Connections, Perfect For Swagelok Ultra-Torr and Our NVacuo O-ring Compression Fittings
Oftentimes, low-pressure IR gas cells require cleaning or replacing the IR windows to remove sample vapor depositions. Our Ideal Vacuum LeakFree-IR gas cells make this chore easy. Each window can be independently removed without disassembling the rest of the gas cell. The only tools necessary are a standard Allen wrench set.
Our Ideal Vacuum LeakFree-IR Gas Cells work with most Infrared Spectrometers:
Nicolet Nexus 470, 670, Euro
Nicolet 4700, 6700, 8700
Nicolet Magna 550, 560, 750, 760, 850, 860
Nicolet Protege 460, 460 E.S.P.
Nicolet Impact 400, 400D, 410, 420
Nicolet Avatar 320, 360
Thermo X700 4700, 6700
Thermo Scientific Nicolet iS10
Thermo Scientific Nicolet iS50
Perkin Elmer Spectrum Two
Bruker, Mattson, and many others
Potassium Chloride (KCl) Properties
Optical
Transmission Range: 0.21 to 21 µm
Refractive Index: 1.456 at 10 µm
Reflection Loss: 6.8% at 10 µm
Absorption Coef.: 6.5 x 10-3 cm-1 at 10.6 µm
Reststrahlen Peak: 63.1 µm
Chemical behavior of polished surfaces
Climatic resistance class CR (n/a) (ISO/WD 13384)
Acid resistance class SR (n/a) (ISO 8424)
Alkali resistance class AR (n/a) (ISO 10629)
Phosphate resistance class PR (n/a) (ISO 9689)
Stain resistance class FR (n/a)
Solubility: 34.7g/100g water at 20°C (Do NOT immerse in water.)
Ideal Spectroscopy offers 3D CAD models in Solidworks (SLDPRT), STP, & STEP formats. For those without CAD software a free trial 3D model viewer with measurement capabilities can be
downloaded here: