Electrum is a metal alloy mainly consisting of gold, silver and traces of some other metals. This naturally occurring alloy has a long history of being used for making coins, vessels and also for coatings. It was referred to as âgoldâ or âwhite goldâ by ancient Greeks.
In Interstitial defect, atom occupies the interstitial space of the lattice structure of solid crystal. In Substitutional defect, the foreign atom occupies only the lattice site of a crystalline solid. Interstitial defect may occur by the atoms of either same solid (called self-interstitial) or foreign material. Substitutional defect is always caused by foreign atoms.
Interstitial fluid consists of a water solvent containing sugars, salts, fatty acids, amino acids, coenzymes, hormones, neurotransmitters, as well as waste products from the cells. The composition of tissue fluid depends upon the exchanges between the cells in the biological tissue and the blood.This means that tissue fluid has a different composition in different tissues and in different areas of the body.he ionic composition of the interstitial fluid and blood plasma vary due to the GibbsâDonnan effect. This causes a slight difference in the concentration of cations and anions between the two fluid compartments.