Species with data from:

Viggiano, A.A.; Morris, R.A.; Dale, F.; Paulson, J.F.; Henshman, M.J.; Miller, T.M.; Miller, S., The Gas Phase Acidities of HPO3 and HPO2: Enthalpies of Deprotonation, J. Phys. Chem., 1991, 95, 3, 1275, https://doi.org/10.1021/j100156a044 .

5 matching species were found.

For each matching species the following will be displayed:

• Chemical name
• Chemical formula
• Structure image (if available)

Click on the name to see more data.

1. PO3 anion (O₃P^-)
2. PO2 anion (O₂P^-)
3. Hydrogen cation (H⁺)
   
4. HO2P (HO₂P)
5. metaphosphoric acid (HO₃P)
   

© 2026 by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved.

Copyright for NIST Standard Reference Data is governed by the Standard Reference Data Act.