| Identification | |
| Name: | Sodium trisilicate |
| Synonyms: | sodium; oxygen(-2) anion; silicon; sodium;Silicon sodium oxide (Si3Na2O7);Disodium trisilicon heptaoxide; |
| CAS: | 13870-30-9 |
| EINECS: | 215-687-4 |
| Molecular Formula: | Na2O7Si3 |
| Molecular Weight: | 242.23 |
| InChI: | InChI=1S/2Na.7O.3Si/q;+1;7*-2;;; |
| Molecular Structure: |  |
| Properties | |
| Transport: | UN 2813 4.3/PG 2 |
| Density: | 0.7 g/mL at 25 °C |
| Solubility: | VERY SLIGHTLY SOL OR ALMOST INSOL IN COLD WATER; LESS READILY SOL IN LARGE AMT OF WATER THAN IN SMALL AMT; ANHYD DISSOLVE WITH MORE DIFFICULTY THAN HYDRATE IN WATER GLASS FORM SOL IN STEAM UNDER PRESSURE; PARTIALLY MISCIBLE WITH PRIMARY ALC & KETONES; MISCIBLE WITH SOME POLYHYDRIC ALC INSOL IN ALC, POTASSIUM, & SODIUM SALTS BROUGHT INTO SOLN BY HEATING WITH WATER UNDER PRESSURE; SILICATES CONTAINING MORE SODIUM DISSOLVE MORE READILY |
| Appearance: | powder |
| Specification: |
Disodium trisilicon heptaoxide (CAS NO.13870-30-9), its Synonyms are Silicon sodium oxide (Si3Na2O7) ; Silicon sodium oxide (Si3Na2O7) . |
| Color: | COLORLESS TO WHITE OR GRAYISH-WHITE, CRYSTAL-LIKE PIECES OR LUMPS LUMPS OF GREENISH GLASS; WHITE POWDERS; LIQUIDS CLOUDY OR CLEAR |
| Safety Data | |
| Hazard Symbols |
Xi: Irritant
C: Corrosive
F: Flammable
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