Answers are grounded in this paper and cite their sources.
A report discussing a spectrophotometric study of thorium's reaction with morin in solutions of pH 2.0, which yields a single yellow complex with a ratio of 1 thorium:2 morin.
No takes yet. Share an insight, caveat, or question.
Fletcher et al. (1956) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: