 Beryllium nitride , <unk> is a high @-@ melting @-@ point compound which is readily hydrolyzed . Beryllium azide , <unk> is known and beryllium phosphide , <unk> has a similar structure to <unk> . Basic beryllium nitrate and basic beryllium acetate have similar tetrahedral structures with four beryllium atoms coordinated to a central oxide ion . A number of beryllium borides are known , such as <unk> , <unk> , <unk> , <unk> , <unk> and <unk> . Beryllium carbide , <unk> , is a refractory brick @-@ red compound that reacts with water to give methane . No beryllium silicide has been identified . 
