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Molecule
Potassium Pyrophosphate
CAS: 7320-34-5 · H4K4O7P2
2D Structure
3D Structure
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Basic Information
- CAS Registry Number
- 7320-34-5
- Molecular Formula
- H4K4O7P2
- Molecular Mass
- 334.37 g/mol
Identifiers
CAS Registry Number
7320-34-5
SMILES
O=P(O)(O)OP(=O)(O)O.[K].[K].[K].[K]
InChI Key
SVUBBMULKFSENH-UHFFFAOYSA-N
InChI
InChI=1S/4K.H4O7P2/c;;;;1-8(2,3)7-9(4,5)6/h;;;;(H2,1,2,3)(H2,4,5,6)
Names and Synonyms
- Potassium Pyrophosphate Synonym
- Diphosphoric acid, potassium salt (1:4) Synonym
- Pyrophosphoric acid, tetrapotassium salt Synonym
- Diphosphoric acid, tetrapotassium salt Synonym
- Phosphosol Synonym
- Potassium pyrophosphate Synonym
- Tetrapotassium pyrophosphate Synonym
- Tetrakalium pyrophosphate Synonym
- Tetrapotassium diphosphate Synonym
- Potassium phosphate (K4P2O7) Synonym
- Potassium diphosphate (K4P2O7) Synonym
- E 450v Synonym
- Potassium metaphosphate oxide (K4(PO3)2O) Synonym
All Properties
Comprehensive physical and chemical properties
| Property | Value | Source |
|---|---|---|
| Molecular Mass | 334.37 g/mol | CAS Common Chemistry |
| 334.36500000000007 g/mol | RDKit | |
| 334.365 g/mol | RDKit | |
| 338.397 g/mol | chempirical lib | |
| Canonical SMILES | [K].O=P(O)(O)OP(=O)(O)O | CAS Common Chemistry |
| InChI | InChI=1S/4K.H4O7P2/c;;;;1-8(2,3)7-9(4,5)6/h;;;;(H2,1,2,3)(H2,4,5,6) | CAS Common Chemistry |
| InChI Key | InChIKey=SVUBBMULKFSENH-UHFFFAOYSA-N | CAS Common Chemistry |
| Melting Point | 1090 °C | CAS Common Chemistry |
| Name | Potassium pyrophosphate | CAS Common Chemistry |
| Heavy Atom Count | 13 | RDKit |
| Hydrogen Bond Acceptors | 3 | RDKit |
| Hydrogen Bond Donors | 4 | RDKit |
| Rotatable Bonds | 2 | RDKit |
| Aromatic Ring Count | 0 | RDKit |
| Topological Polar Surface Area | 124.29000000000002 Ų | RDKit |
| 124.29 Ų | RDKit | |
| LogP | -2.3348000000000004 | RDKit |
| -2.3348 | RDKit | |
| Molar Refractivity | 48.1892 cm³/mol | RDKit |
| Ring Count | 0 | RDKit |
| Formal Charge | 0 | RDKit |
| Fraction Csp3 | 0.0 | RDKit |
| Exact Mass | 333.798052448 g/mol | RDKit |
Spectral Data
NMR, IR, and Mass spectral data
Predicting NMR spectra...
10 ppm
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3
2
1
0 ppm
| Shift (ppm) | Multiplicity | Integration | Assignment |
|---|
200 ppm
180
160
140
120
100
80
60
40
20
0 ppm
| Shift (ppm) | DEPT | Assignment |
|---|
Note: These NMR spectra are predicted computationally and may differ from experimental data. Predictions are based on chemical environment analysis.
External Resources
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MW = 334.37 g/mol. Edit any field — others recompute live.
