pentoxide
/pɛnˈtɒksʌɪd
/noun Chemistry
An oxide containing five atoms of oxygen in its molecule or empirical formula.Glass-forming substances are usually silica, boric oxide, phosphorous pentoxide, or feldspars....
- In one method, naphthalene is oxidized with vanadium pentoxide to give phthalic anhydride.
- The thin covering is composed of alternating layers of silicon dioxide and tantalum pentoxide.