砷化钠是一种无机化合物,由钠和砷两种元素组成,化学式为Na3As。[1]它可由砷和钠在200–400 °C的化合反应得到,遇水或空气分解。[2]
它和镧系元素氯化物(LnCl3,Ln=Pr, Nd, Sm, Gd, Tb, Dy, Er, Yb)在700~800 °C发生复分解反应,得到相应的砷化物LnAs。[3]它在液氨中和过渡金属氯化物反应,也能得到相应的砷化物。[4]它和砷化铕在800 °C反应,可以得到Na2Eu3As4。[5]
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