man·ga·nate /ˈmæŋgəˌnet/
錳酸鹽
Man·ga·nate n. Chem. A salt of manganic acid.
Note: ☞ The manganates are usually green, and are well-known compounds, though derived from a hypothetical acid.
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manganate
n : a salt of manganic acid containing manganese as its anion