What color is Cyclopentadienyl nickel nitrosyl?
Oxygen Oxygen is a chemical element with symbol O and atomic number 8. It is a member of the chalcogen group on the periodic table, a highly reactive nonmetal, and an oxidizing agent that readily forms oxides with most elements as well as with other compounds. By mass, oxygen is the third-most abundant element in the universe, after hydrogen and helium. At standard temperature and pressure, two atoms of the element bind to form dioxygen, a colorless and odorless diatomic gas with the formula O2 . Diatomic oxygen gas constitutes 20.8% of the Earth's atmosphere. As compounds including oxides, the element makes up almost half of the Earth's crust.
N-Cyclohexyl-2-pyrrolidone "N"-Cyclohexyl-2-pyrrolidone or CHP is a yellow to colorless liquid. It has a low vapor pressure, and is nearly odorless. It has a low solubility in water, but is soluble in a variety of organic solvents.