... insoluble in ethanol, relative density 1.63,melting point 34.6°C,when heated to 180°C,it may lose crystal water, ... basis),≤%0.20.2Fluoride, ≤%0.0050.001Loss on drying,1,Anhydrous:≤5.0%;2,Dihydrate:18.0%-22.0%. ( ... 120°C,4h)1,Anhydrous ≤5.0%,2,Dihydrate ≤22.0%3,Heptahydrate ... ≤50.0%4,Dodecahydrate ≤61.0%(40°C,3h then 105°C ...