quenching constant

in photochemistry
https://doi.org/10.1351/goldbook.Q05008
See:
quencher
,
quenching
,
Stern–Volmer kinetic relationships
Source:
PAC, 1996, 68, 2223. (Glossary of terms used in photochemistry (IUPAC Recommendations 1996)) on page 2268 [Terms] [Paper]