IRTRAN™

https://doi.org/10.1351/goldbook.08627
Kinds of crystal transparent to infrared radiation used as windows and filters in infrared spectroscopy.
Notes:
  1. IRTRAN 1 to IRTRAN 5 are hot-pressed forms of \(\ce{MgF2}\), \(\ce{CdF2}\), \(\ce{MgO}\), \(\ce{ZnSe}\) and \(\ce{ZnS}\), respectively.
  2. IRTRAN is a registered trade mark of Eastman Kodak Co.
Source:
PAC, 2021, 93, 647. 'Glossary of methods and terms used in analytical spectroscopy (IUPAC Recommendations 2019)' on page 752 (https://doi.org/10.1515/pac-2019-0203)