Cargille Refractive Index (RI) liquids were originally developed for mineral identification and are now widely used across and beyond materials science, engineering, biology, forensics, optical analysis, and asbestos testing.
With over 250 standard RI liquids available, plus custom formulations, they offer precise refractive index matching, extended ranges, and fine increments—ideal for laboratories requiring accuracy and reliable results.

Key characteristics include the following:
1) High vapour density (approximately ten times that of air)
2) Low volatility, improving handling stability
3) Higher boiling points (at least 10°C above those restricted under the Montreal Protocol).

Cargille RI liquids are trusted globally for their precision, versatility, and consistency in demanding laboratory applications.