... soluble in dilute hydrochloric acid and nitric acid, melting point of 1670; Water-soluble, non-soluble in ethanol; Stability ... be formed α,α more soluble than β citric acid.4.Use: Industrial calcium in the three manufacturing ceramics, stained glass, opal glass, ... feed additives for poultry; defluorination three poultry as calcium phosphate calcium additive, and in acidic soil for basal fertilizer. ...