EDA Air

CAS Number: 10028-15-6. A triatomic, very reactive form of
oxygen that is a bluish, irritating gas of pungent odor. It is
formed naturally in the atmosphere by a photochemical reaction.
It is a major air pollutant in the lower atmosphere but a
beneficial component of the upper atmosphere. Ozone is used for
oxidizing, bleaching, disinfecting, and deodorizing. Chemical
formula = O3. Molecular weight = 47.998 g/mol.

CAS Number: 7440-65-5. A highly crystalline, dark gray metal.
Yttrium is largely used in its oxide form, yttria (YxO3), which
is used to make red phosphors for color television picture tubes.
It is also used in small amounts as a metal alloy. Chemical
formula = Y. Molecular weight = 88.906 g/mol.