Sodium metaperiodate.trihydrate

EINECS 232-197-6 Metapetiodate Periodic acid (HIO4), sodium salt Periodic acid, sodium salt Sodium metaperiodate Sodium periodate. Source of periodic acid, analybcai reagent, oxidizing agent. Crystais mp = 300 dj 3.865 soluble in H2O trihydrate dec 175° dj = 3.219 soluble in H2O (0.12 g/ml). Atomergic Chemetals Noah Cham. 

If silver nitrate be treated with a soln. of sodium dimesoperiodate in dil. nitric acid, and the pale greenish-yellow precipitate be washed with water acidified with nitric acid, and then dissolved in warm dil. nitric acid, the soln. furnishes, on cooling, straw-yellow trigonal crystals of trihydrated silver dimesoperiodate, Ag4I209.3H20. The same salt is formed when the orange-red crystals of silver metaperiodate ate digested with water and a soln. of potassium dimesoperiodate, acidified with nitric acid. 

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