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The synthesis and thermal behaviour of sodium phosphorodiamidate (1986)

Watanabe, Makoto ; Sato, Shoji

Springer

Journal of materials science 21 (1986), S. 2623-2627

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ISSN: 1573-4803

Source: Springer Online Journal Archives 1860-2000

Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics

Notes: Abstract Sodium phosphorodiamidate pentahydrate, NaPO2(NH2)2·5H2O, was made by saponifying phenyl phosphorodiamidate with a 4 mol dm−3 aqueous sodium hydroxide solution. The product was stable below 5° C, but it decomposed gradually to phosphoramidate and orthophosphate at 30° C. The phosphorodiamidate produced imidopolyphosphates and polyphosphates other than phosphoramidate and orthophosphate when it was heated above 30° C, and was finally converted to sodium metaphosphate above 300° C in air.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF00551463

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