The next several consumption fields are: electronic semiconductor field, accounting for 12% of global consumption; Solders and alloys account for 12%; Research industry accounts for 6%. In addition, because of its soft nature, it is also used for joint pressing in some industries that need to be filled with metal. Such as: vacuum gap filling material at high temperature.

Indium is a silvery gray, very soft, fusible metal. The melting point is 156.61 ℃. The boiling point is 2060 ℃. The density is 7.30g/cm3. Liquid indium can soak glass and stick to the contacted surface, leaving black traces.

Indium has weak radioactivity. Natural indium has two main isotopes, In-113 is a stable nuclide, and In-115 is a stable nuclide β- Decay. Therefore, avoid direct contact as much as possible in use.