Gallium trichloride is the chemical compound with the formula GaCl3. Solid gallium trichloride exists as a dimer with the formula Ga2Cl6.It is colourless and soluble in virtually all solvents, even alkanes, which is truly unusual for a metal halide.
G 1625 (OTTO) Gallium(III) chloride, puriss, 99.999% Cas 13450-90-3 - used in the GALLEX and GNO experiments performed at Laboratori Nazionali del Gran Sasso in Italy to detect solar neutrinos.