Ammonia is a compound of nitrogen and hydrogen with the formula NH3.
In chemistry, a colloid is a mixture in which one substance of microscopically dispersed insoluble particles is suspended throughout another substance.
A crystal or crystalline solid is a solid material whose constituents (such as atoms, molecules, or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions.
A ferrofluid (portmanteau of ferromagnetic and fluid) is a liquid that becomes strongly magnetized in the presence of a magnetic field.
Group 7, numbered by IUPAC nomenclature, is a group of elements in the periodic table.
Group 8 is a group of chemical element in the periodic table.
Iron is a chemical element with symbol Fe (from ferrum) and atomic number 26.
Iron poisoning is an iron overload caused by a large excess of iron intake and usually refers to an acute overload rather than a gradual one.
A metal (from Greek μέταλλον métallon, "mine, quarry, metal") is a material (an element, compound, or alloy) that is typically hard when in solid state, opaque, shiny, and has good electrical and thermal conductivity.
Nanoparticles are particles between 1 and 100 nanometres (nm) in size with a surrounding interfacial layer.
In chemistry, a nitride is a compound of nitrogen where nitrogen has a formal oxidation state of 3-.
Nitrogen is a chemical element with symbol N and atomic number 7.
Solubility is the property of a solid, liquid or gaseous chemical substance called solute to dissolve in a solid, liquid or gaseous solvent.
In chemistry, the term transition metal (or transition element) has three possible meanings.
Water is a transparent, tasteless, odorless, and nearly colorless chemical substance that is the main constituent of Earth's streams, lakes, and oceans, and the fluids of most living organisms.