Branched Inorganic Phosphates, or Ultraphosphates

Although branched phosphates have not yet been found in living organisms (perhaps as a consequence of their unusually rapid hydrolysis in aqueous solution, irrespective of pH, even at room temperature), it is believed that their presence in biological materials cannot be excluded. 

Information on the chemical compositions of the condensed inorganic phosphates, together with descriptions of their chemical and physico-chemical properties, can be found in several papers, reviews and monographs (Thilo, 1950, 1955, 1956, 1959 Van Wazer, 1950, 1958 Ebel, 1951 Griffith et al1973 Ohashi, 1975 Corbridge, 1980). We shall 

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According to the current classification, condensed phosphates are divided into cyclophosphates, polyphosphates and branched inorganic phosphates (or ultraphosphates ). 

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