System: boron sodium oxide (B4Na2O7)
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| 1) boron sodium oxide (B4Na2O7) |
| DECHEMA ID | 6190 |
| Formula | B4Na2O7 |
| Synonym | Borax |
| Synonym | disodium tetraborate |
| Synonym | anhydrous borax |
| Synonym | Boron sodium oxide |
| Synonym | boric acid (H2B4O7) disodium salt |
| Synonym | disodium bicyclo[3.3.1]tetraboroxane-3,7-diolate |
| Synonym | sodium tetraborate |
| InChi-Key | UQGFMSUEHSUPRD-UHFFFAOYSA-N |
| Registry No. | 1330-43-4 |
Available physical property data:
| Property | Phase | No. of tables | No. of lines | Data |
| density | solid | 4 | 4 | View |
| density | liquid | 2 | 6 | View |
| density | - | 1 | 1 | View |
| enthalpy function (-H(298)) | solid | 1 | 22 | View |
| enthalpy function (-H(298)) | liquid | 1 | 29 | View |
| enthalpy of formation | liquid | 1 | 29 | View |
| enthalpy of formation | solid | 1 | 22 | View |
| entropy | solid | 1 | 22 | View |
| entropy | liquid | 1 | 29 | View |
| equilibrium constant of formation | solid | 1 | 22 | View |
| equilibrium constant of formation | liquid | 1 | 29 | View |
| free energy function (-E(298)) | liquid | 1 | 29 | View |
| free energy function (-E(298)) | solid | 1 | 22 | View |
| free energy of formation | liquid | 1 | 29 | View |
| free energy of formation | solid | 1 | 22 | View |
| fusion temperature | - | 6 | 6 | View |
| heat capacity (cp) | solid | 3 | 30 | View |
| heat capacity (cp) | liquid | 3 | 33 | View |
| melting point | - | 4 | 4 | View |
| molecular weight | - | 1 | 1 | View |
| temperature of phase transition | - | 1 | 1 | View |
| thermal conductivity | solid | 3 | 13 | View |
| thermal conductivity | liquid | 3 | 7 | View |
| viscosity, dynamic | liquid | 2 | 8 | View |