Back to Search
Tetrasodium Pyrophosphate
CAS: 7722-88-5 | H4Na4O7P2
2D Structure
3D Structure
Loading 3D structure...
Basic Information
CAS Registry Number:
7722-88-5
Molecular Formula:
H4Na4O7P2
Molecular Mass:
269.93 g/mol
Names and Synonyms:
Tetrasodium Pyrophosphate
SPP
Diphosphoric acid, sodium salt (1:4)
Pyrophosphoric acid, tetrasodium salt
Diphosphoric acid, tetrasodium salt
Anhydrous tetrasodium pyrophosphate
Phosphotex
Tetrasodium diphosphate
Tetrasodium pyrophosphate
TSPP
Victor TSPP
Sodium pyrophosphate (Na4P2O7)
Sodium pyrophosphate
Sodium diphosphate (Na4P2O7)
Sodium phosphate (Na4P2O7)
Tetrasodium pyrophosphate (Na4P2O7)
Tetrasodium diphosphate (Na4P2O7)
Sodium diphosphate
Accoline 126
SPP (phosphate)
Thermphos Pyro E 450
Sodium phosphorus oxide (Na4P2O7)
Phosphomix 110
Nankarin S 1
Identifiers:
SMILES:
O=P(O)(O)OP(=O)(O)O.[Na].[Na].[Na].[Na]
InChI:
InChI=1S/4Na.H4O7P2/c;;;;1-8(2,3)7-9(4,5)6/h;;;;(H2,1,2,3)(H2,4,5,6)
Key Properties
Melting Point
988 °C
CAS Common Chemistry
Density
2.53 g/cm³
CAS Common Chemistry
Spectral Data
NMR, IR, and Mass spectral data
1H NMR
13C NMR
Predicting NMR spectra...
10 ppm
9
8
7
6
5
4
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.
All Properties
Comprehensive physical and chemical properties
| Property | Value | Source |
|---|---|---|
| Molecular Mass | 269.93 g/mol | CAS Common Chemistry |
| 269.93300000000005 g/mol | RDKit | |
| 269.902302848 g/mol | RDKit | |
| Density | 2.53 g/cm³ | CAS Common Chemistry |
| 2.534 g/cm3 | CAS Common Chemistry | |
| Wikipedia Url | https://en.wikipedia.org/wiki/Tetrasodium_pyrophosphate | CAS Common Chemistry |
| Canonical SMILES | [Na].O=P(O)(O)OP(=O)(O)O | CAS Common Chemistry |
| InChI | InChI=1S/4Na.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=WTXQIGCNRZDSJU-UHFFFAOYSA-N | CAS Common Chemistry |
| Melting Point | 988 °C | CAS Common Chemistry |
| Name | Tetrasodium 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 |
| LogP | -2.3348000000000004 | RDKit |
| Molar Refractivity | 48.1892 | RDKit |
