File:Polyphosphoric acids DEVolk2.png: Revision history

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11 March 2022

22 June 2009

7 December 2007

  • curprev 17:4617:46, 7 December 2007‎ imported>David E. Volk‎ 322 bytes +322‎ {{Image notes |Description= triphosphoric, pyrophosphoric and phosphoric acid figure/eqn |Author= David E. Volk |Date= Dec. 7, 2007 |Source= Created by D. E. Volk |Country first published in= USA in CZ |Copyright holder= David E. Volk |Notes= |Other versions=}}
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