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CaF2 (FTIR) Permanent Sealed Liquid Cell

CaF2 (FTIR) Permanent Sealed Liquid Cell


Permanent Sealed Liquid Cell - For use with FTIR instruments.

CaF2 windows are insoluble in water, resists most acids & alkalis. Soluble in ammonium salts. Its high mechanical strength makes it particularly useful for high pressure work.
Working wavelength range (79,500-1,025cm-1)

The Permanent Sealed Liquid Cell consists of a stainless steel body, which is corrosion resistant. Each cell is permanently mounted and sealed in the stainless steel body and each has a precise path length. Permanent Sealed Liquid Cells are calibrated with the interference fringe calculation before leaving the factory. Since the cell thickness is permanently fixed it provides the user a means for accurate, reproducible results, making it ideal for performing quantitative measurements. The cell is filled through the Luer-Lok filling ports. Permanent Sealed Cells cannot be disassembled without destroying the cell. Should the cell become damaged it can be sent back to Buck Scientific to be repaired.

Please Note: Our permanently sealed cells are custom built to order. Each cell needs time to be cured and then be Quality tested. As a result, all permanently sealed cells have a 2 week lead time.


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  • Hi, Are the permanent Sealed liquid Cells compatible with the transmission module of a Cary 630 FTIR instrument? What are the dimensions of the cell? Regards, John M Goodwin

    Dear Mr. Goodwin,  As long as the Cary 630 FTIR uses a standard IR cell mount it should be fine.  The slide plates are about 2" wide and 3" high.  I think the dimensions on my demountable cell which is made to go in the same standard holder for its slide plate is 1.990" wide by 3.00 high.  Then depending on the windows and spacers are 1.5" thick depending on the model.  In the past most UV/Vis cell holders were all custom and the IR cell holders were standardized.  Recently some of the FTIR companies have started using non-standard cell holders so you have to buy them from the manufacturer.