1,Formula Anhydrous CaHPO4 Dihydrate CaHPO4 2H2O 2,Formula wt anhydrous 136.06 Formula wt dihydrate 172.09 1,Formula: Anhydrous CaHPO4 ; Dihydrate CaHPO4·2H2O 2,Formula wt, anhydrous 136.06Formula wt, dihydrate 172.093,CAS: anhydrous [7757-93-9]; CAS: dihydrate [7789-77-7]4,Specificity: white monoclinic crystalline powder, odorless, soluble in diluted hydrochloric acid, nitric acid, acetic acid, ...