Liquid helium is inert, colorless, odorless, noncorrosive, extremely cold, and nonflammable. Helium will not react with other elements or compounds under ordinary conditions.

• 液态氦不活泼；无色；无嗅；无腐蚀性；温度极低；不可燃.；氦一般情况下不同其它元素或化合物反应