Gold chloride, also known as auric chloride or chloroauric acid, is a chemical compound that has many uses in various industries. Because of its importance, it is essential to know its synonyms. One synonym for it is gold(III) chloride, which means that the gold ion has a positive charge of three. Another synonym is tetrachloroauric acid, which is a yellow crystalline solid that dissolves in water. Thirdly, chlorauric acid is also a synonym for gold chloride or auric chloride. Finally, HAuCl4, which is its chemical formula, is another way of referring to this compound. These synonyms are crucial in identifying and communicating information about the properties and applications of gold chloride.