Tl2SO43

Tl2SO43 is not a recognized chemical compound based on standard chemical nomenclature. The formula suggests thallium (Tl) combined with sulfate (SO4), but the subscript "3" on the sulfate group is problematic. If the intended compound is thallium(I) sulfate, the formula would be Tl2SO4. In this compound, thallium exists in the +1 oxidation state, and the sulfate ion has a charge of -2. Thallium(I) sulfate is a white crystalline solid that is highly toxic. It is soluble in water and has been used historically as a rodenticide and insecticide, though its use is now severely restricted due to its extreme toxicity to humans and other non-target organisms.

If the intended compound involves thallium in a different oxidation state, or if the "3" refers to something other than the number of sulfate ions, the formula would need clarification. For instance, if thallium were in the +3 oxidation state, its sulfate would be Tl2(SO4)3, where each thallium ion has a +3 charge and the sulfate ion has a -2 charge, requiring two thallium ions and three sulfate ions for charge neutrality. Thallium(III) sulfate is also known and is similarly toxic. Without further context or a corrected formula, Tl2SO43 cannot be definitively identified as a known chemical substance.