(23) SpectroGrade™ KBr powder is a must for IR pellets of extremely high grade. The low moisture content and high purity of SpectroGrade™ KBr powder is only possible because it comes directly from ICL’s own ingot stock. This powder is ideal for producing KBr crystal pellets. A 100 gram bottle will yield approximately 250 7mm pellets. 99.999% pure XL™ grade KBr powder and FTIR grade are also available. Purity certifications are provided with XL™ and FTIR grade powder. Ask for ICL’s instruction pamphlet “Making KBr Pellets”.
(4) Magnetic holders are convenient for holding KBr pellets or thin polymer films. They are also useful for mounting a 13mm crystal that has been used as a microscope slide in a standard spectrophotometer sample compartment. The film sample, pellet or optic is held in place by a magnetized rubber plate. These holders fit the universal 2" x 3" slide mount in all spectrophotometers. Use of paper inserts facilitates mounting small samples.
(2) ICL’s popular Econo Cards are an ideal vehicle for mounting KBr pellets and polymer films or for use with disposable polyethylene IR transmission windows. They are available with 19mm and 9.5mm circular apertures. Econo Cards have a pressure sensitive adhesive on the inside surface, but the adhesive is kept away from the aperture and outside of the path of the spectrophotometer beam to avoid spurious absorbance peaks. The sample is mounted on the adhesive surface and the card then folds over into a 2" x 4" card that can be inserted in the slide mount in any spectrophotometer or used to store the sample for future reference.
(8) ICL’s agate mortars and pestles are the ideal tool for grinding a matrix of a solid sample with KBr powder in preparation for making a transparent pellet free from spurious absorption peaks.
