Sponge Gold

Sponge gold is soft and ductile, which has good conductivity of heat and electricity. Its chemical property is not active and is not easy to oxidize in air. It does react with water, acid or strong alkali solution, however can dissolve in aqua regia and turn into chloroauric acid. It would’t oxidize when heating to melt.

CAS No.:7440-57-5EINECS No.:231-165-9Molecular Formula:AuMolecular Weight:196.97
Melting Point:1064.43℃Boiling Point:3080℃Density:19.99Purity:99.95

Au is mostly for coins and art craft. It is also for parts of crystal valve, electrical contact alloys, medicine and decorative alloys.