... crystal, easily soluble in water, insoluble in ethanol, relative density 1.63,melting point 34.6°C,when heated to 180 ... PE liner. Name of indexFCC-VE339(ii)pH of a 1 % solution--8.4—9.6Content(as dry base),≥%98.098 ... Anhydrous basis),≤%0.20.2Fluoride, ≤%0.0050.001Loss on drying,1,Anhydrous:≤5.0%;2,Dihydrate:18.0%-22.0%. (120 ... C,5h))As,≤%0.00030.0003Cadmium ≤%--0.0001Mercury ≤%--0.0001 disodium phosphate