Methanol 1.3314 13.66 https://refractiveindex.info/?shelf=organic&book=methanol&page=El-Kashef
https://www.semanticscholar.org/paper/Optical-properties-of-liquids-for-fluidic-optics.-Liebetraut-Waibel/f7f9564d91b22e848fa37305b846b449a6f44bf4/figure/13