-
known as
diphosphoric acid, is the
inorganic compound with the
formula H4P2O7 or, more descriptively, [(HO)2P(O)]2O.
Colorless and odorless, it is soluble...
- {\displaystyle {\begin{aligned}{\ce {2 H3PO4}}&\longrightarrow {\ce {
H4P2O7 + H2O}}\\[2pt]{\ce {
H4P2O7 + H3PO4}}&\longrightarrow {\ce {H5P3O10 + H2O}}\\[2pt]{\ce...
- self-condensation,
forming an
equilibrium with
pyrophosphoric acid: 2 H3PO4 ⇌ H2O +
H4P2O7 Even at 90%
concentration the
amount of
pyrophosphoric acid
present is negligible...
- bond.
Pyrophosphoric acid is a
tetraprotic acid, with four
distinct pKa's:
H4P2O7 ⇌ [H3P2O7]− + H+, pKa1 = 0.85 [H3P2O7]− ⇌ [H2P2O7]2− + H+, pKa2 = 1.96 [H2P2O7]2−...
- HNO2 HNO3 H2N2O2 HNO5S H3NSO3 H2O H2O2 H2O3 H2O4 H2O5 H3PO2 H3PO3 H3PO4
H4P2O7 H5P3O10 H2[PtCl6] H2S H2S2 H2Se H2SeO3 H2SeO4 H4SiO4 H2[SiF6] HSCN HNCS...
- n+2 acids,
salts (n = 1-6) +5 H5P3O10
tripolyphosphoric acid 3
salts +5
H4P2O7 pyrophosphoric acid 4 acid,
salts +5 H3PO4 (ortho)phosphoric acid 3 acid...
-
phosphoric acids, it is the next
polyphosphoric acid
after pyrophosphoric acid,
H4P2O7, also
called diphosphoric acid.
Compounds such as ATP (adenosine triphosphate)...
- HNO2 HNO3 H2N2O2 HNO5S H3NSO3 H2O H2O2 H2O3 H2O4 H2O5 H3PO2 H3PO3 H3PO4
H4P2O7 H5P3O10 H2[PtCl6] H2S H2S2 H2Se H2SeO3 H2SeO4 H4SiO4 H2[SiF6] HSCN HNCS...
- HNO2 HNO3 H2N2O2 HNO5S H3NSO3 H2O H2O2 H2O3 H2O4 H2O5 H3PO2 H3PO3 H3PO4
H4P2O7 H5P3O10 H2[PtCl6] H2S H2S2 H2Se H2SeO3 H2SeO4 H4SiO4 H2[SiF6] HSCN HNCS...
- HNO2 HNO3 H2N2O2 HNO5S H3NSO3 H2O H2O2 H2O3 H2O4 H2O5 H3PO2 H3PO3 H3PO4
H4P2O7 H5P3O10 H2[PtCl6] H2S H2S2 H2Se H2SeO3 H2SeO4 H4SiO4 H2[SiF6] HSCN HNCS...
