United States Marine Forces Central Command. (Redirected from MARCENT) The Commander, U.S. Marine Corps Forces, Central Command (COMUSMARCENT), is designated as the Marine Corps service component commander for Commander, U.S. Central Command (COMUSCENTCOM).
As a consequence of its structure where there are no significant lattice forces, gallium trichloride has the lowest melting point of all of the aluminium, gallium and indium trihalides. The formula of Ga 2 Cl 6 is often written as Ga 2 (Î¼-Cl) 2 Cl 4.
Gallium reacts with ammonia at 1050 Â°C to form gallium nitride, GaN. Gallium also forms binary compounds with phosphorus, arsenic, and antimony: gallium phosphide (GaP), gallium arsenide (GaAs), and gallium antimonide (GaSb). These compounds have the same structure as ZnS, and have important semiconducting properties.