  Potassium hydroxide (KOH) and sodium hydroxide (NaOH) are expected to occur
in the atmospheres of hot rocky super-Earth exoplanets but a lack of
spectroscopic data is hampering their potential detection. Using robust
first-principles methodologies, comprehensive molecular line lists for KOH and
NaOH that are applicable for temperatures up to $T=3500$ K are presented. The
KOH OYT4 line list covers the 0-6000 cm$^{-1}$ (wavelengths $\lambda > 1.67$
$\mu$m) range and comprises 38 billion transitions between 7.3 million energy
levels with rotational excitation up to $J=255$. The NaOH OYT5 line list covers
the 0 - 9000 cm$^{-1}$ (wavelengths $\lambda > 1.11$ $\mu$m) range and contains
almost 50 billion lines involving 7.9 million molecular states with rotational
excitation up to $J=206$. The OYT4 and OYT5 line lists are available from the
ExoMol database at www.exomol.com and should greatly aid the study of hot rocky
exoplanets.
