The decahydrate effloresces slightly in dry air

The decahydrate effloresces slightly in dry air

The anhydrous form is hygroscopic, the decahydrate efflorescent

The anhydrous form is hygroscopic, the decahydrate efflorescent

Not more than 1,0 % (anhydrous) or not more than 57 % (decahydrate) at 130 °C

Not more than 1,0 % (anhydrous) or not more than 57 % (decahydrate) at 130 °C

A method for production of ammonium paratungstate tetrahydrate by thermal treatment of ammonium paratungstate decahydrate in aqueous suspension is disclosed.

This is achieved whilst retaining good physical properties in the bar by incorporating aluminium hydroxide and tetra sodium pyrophosphate decahydrate into the bar.

(iii) sodium ferrocyanide decahydrate in an amount not exceeding 13 parts per million calculated as anhydrous sodium ferrocyanide;

As the pond evaporates, the sodium bicarbonate will take up only about 40 percent of the volume of the sodium carbonate decahydrate that is formed by the drying of sodium carbonate.

Chemical materials which have high latent heat fusion (high BTU capacity) such as Glauber's salt (sodium sulfate decahydrate), can be used in the storage of heat, such as heat generated from solar units.

(ii) 13 parts per million anhydrous sodium ferrocyanide when added as sodium ferrocyanide decahydrate in the production of dendritic crystals of salt,