Crystal water content

The yield is almost quantitative (5.5-S.8 g depending on the crystal water content). ... 

Freeze drying, i.e., sublimation drying of the ice content and desorption drying of the bound or crystal water content... 

Colorless, water-soluble crystals. Water content 15 moles of HgO/mole. In keeping with its molecular weight, should be considered a salt of a divanadic acid H4(Vs07 aq.). 

Large transparent or milky-white trichlinic crystals. Water content 28 moles of HsO/mole. Readily soluble in water. Other hydrates exist at higher temperatures. The recent views on the complex processes involved in the formation of paratungstates are given by Jander and Kriierke. 

Formula weight 5416.78. Sparkling crystals. Water content 23 moles of HgO/mole. 

Yellow monoclinic crystals. Water content 23 or 24 moles of HsO/mole. Soluble in HgO. 

The empirical formula is the molecular formula of a chemical compound. The order of atoms follows tlie Hill system which is utilized by the Chemical Abstracts Services and by the Beilstein Institute. Within the empirical formula C is the first element symbol, H is the second, the other element symbols are added in alphabetical order. The empirical formula does not take into account of any crystal water content. Using this field for searches requires that the above guidelines are strictly followed. 

Efflorescence, which is losing crystal water it occurs especially with sulfates and in particular with zinc sulfate, and with substances with a high crystal water content such as disodium phosphate dodecahydrate... 

Sulfates will also cause concrete to deteriorate. In addition to being able to produce sulfuric acid, which is highly corrosive to concrete, sulfates are also reactive with some aggregates used in concrete mixes. Sulfate ions react with tricalcium aluminate to form sulfoaluminate hydrate with a large crystallized water content. 

---