Formula Browser
Formulas which begin with HP
All formulas are in Hill order.
- HP (Phosphinidene)
- HP+ (Hydrophosphorus cation)
- HP-______ (2 species)
- HPS______ (2 species)
- HP2- (HP2 anion)
© 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.