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Sodium “telluropentathionate 2-hydrate

Sodium telluropentathionate 2-hydrate, 4 88, 89 Sodium tetrametaphosphate 4-hydrate, Na4P40i2-4H20, purification of, for preparation of sodium tetraphosphate, 6 98 Sodium tetraphosphate, Na P Oi3, for preparation of hexaguani-donium tetraphosphate 1-hydrate, 5 99... [Pg.249]

Sodium telluropentathionate 2-hydrate crystallizes as small plates or flat needles. A mass of crystals appears yellow with an orange tint single crystals are yellow with a greenish tint. Dilute aqueous solutions are yellow concentrated solutions are orange red. The salt is readily soluble in water, though less soluble than the analogous selenium compound. It is insoluble in ethanol and insoluble or very sparingly soluble in methanol. Its water of hydration, like that associated with sodium selenopentathionate, is lost very slowly in vacuo over sulfuric acid. [Pg.90]

Sodium selenopentathionate 3-hydrate, which was first isolated in 1949,1 is prepared by the reaction used by Norris and Fay2 for the iodometric analysis of selenious acid. Salts of telluropentathionic acid were also first isolated in 1949.3 The reaction utilized in their preparation was also discovered by Norris and Fay.2,4 Tellurous acid cannot be analyzed by a procedure analogous to that which Norris and Fay applied to the determination of selenious acid, because telluropentathionate is not indifferent to iodine but may be titrated directly with it 3... [Pg.88]


See other pages where Sodium “telluropentathionate 2-hydrate is mentioned: [Pg.89]    [Pg.90]    [Pg.89]    [Pg.90]   
See also in sourсe #XX -- [ Pg.4 , Pg.88 ]

See also in sourсe #XX -- [ Pg.4 , Pg.88 ]

See also in sourсe #XX -- [ Pg.4 , Pg.88 ]




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Sodium “telluropentathionate

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