Simplify the following text for a Grade 12 native English-speaking person.
Original: Typically , an acidic solution of thallium ( I ) sulfate is treated with hydrochloric acid to precipitate insoluble thallium ( I ) chloride .
Simplified: Thallium ( I ) chloride is made by reacting any soluble chloride such as hydrochloric acid with thallium ( I ) sulfate .