Indium is available as metal and compounds with purities from 99% to 99.9999% 

(ACS grade to ultra-high purity); metals in the form of foil, sputtering target, and 

rod, and compounds as submicron and nanopowder.  High Purity (99.99999%) 

Indium (In) Sputtering TargetIndium is also used in various metal alloys (See AE 

Alloys). Elemental or metallic forms include pellets, wire and granules for 

evaporation source material purposes. Indium oxide is available in forms including    
powders and dense pellets for such uses as optical coating and thin film 

applications. Oxides tend to be insoluble. Indium fluoride is another insoluble form 

for uses in which oxygen is undesirable such as metallurgy, chemical and physical 

vapor deposition and in some optical coatings. Indium is available in soluble forms 

including chlorides, nitrates and acetates. These compounds are also 

manufactured as solutions at specified stoichiometries.