Acid Salts of Beryllium

Beryllium has very little tendency to form acid salts and only an acid oxalate, an acid molybdate, an acid phosphate, an acid arsenate and four acid selenites have place in chemical literature. The first has been shown to be a simple mixture of the normal oxalate and oxalic acid, and tlie molybdate and selenites were little more than the residues left on evaporating the constituents with little of detail in their study. The phosphate was non-crystalline. These salts need confirmation although from the well known tendencies of phosphoric acid, the existence of an acid phosphate would seem as probable as any acid salt of beryllium. 

Beryllium Monoacid Phosphate, BeHPOj.sHjO.—Sheflfer 

Beryllium Acid Arsenate, BeHAs04.2Ha0.—Reported by Atterberg (1875 4) as resembling the corresponding phosphate and made in the same way. 

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