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Thulium(III) chloride or thulium trichloride is the chemical compound composed of thulium and chlorine with the formula TmCl3.
T 0115 (OTTO) Thulium(III) chloride, 99.99% Cas 13537-18-3 - used as a precursor to Tm during the synthesis of NaYF4:Yb,Tm upconversion nanocrystal-semiconductor hybrid structures, which finds use in enhanced NIR photocatalysis.