fluoride

フッ化物

フッ素が別の元素や化学的な集まりと結びついた物質。

やさしい英語で： A substance made of fluorine joined chemically with one other element or chemical group.

• This toothpaste contains sodium fluoride.
• Calcium fluoride occurs naturally in some rocks.
• The laboratory produces several fluorides for industrial use.

よく使う表現： calcium fluoride, sodium fluoride, fluoride compound

フッ化物

フッ化水素酸からできる塩で、ナトリウムなどの金属を含むことが多い。

やさしい英語で： A salt made from hydrofluoric acid, often containing a metal such as sodium.

• Potassium fluoride is a salt.
• The chemist dissolved the fluoride in water.
• These metallic fluorides react differently when heated.

類義語： fluate, fluat

よく使う表現： fluoride salt, potassium fluoride, metal fluoride

フッ化物イオン

電子を一つ余分に受け取り、負の電荷を持つフッ素原子。

やさしい英語で： A fluorine atom that has gained an extra electron and has a negative electrical charge.

• The fluoride ion has a negative charge.
• This test measures fluoride in the solution.
• Each fluorine atom gains an electron to become fluoride.

類義語： fluoride ion

よく使う表現： fluoride ion, dissolved fluoride, fluoride concentration