| Identification | |
| Name: | Tetrasodium orthosilicate |
| Synonyms: | tetrasodium orthosilicate |
| CAS: | 13472-30-5 |
| EINECS: | 236-741-3 |
| Molecular Formula: | Na4O4Si |
| Molecular Weight: | 184.0422 |
| InChI: | InChI=1/4Na.O4Si/c;;;;1-5(2,3)4/q4*+1;-4 |
| Molecular Structure: |  |
| Properties | |
| Transport: | 3262 |
| Melting Point: | 1018 ºC |
| Flash Point: | °C |
| Boiling Point: | °Cat760mmHg |
| Density: | g/cm3 |
| 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: | white granular or powder |
| Packinggroup: | II |
| Flash Point: | °C |
| Color: | COLORLESS TO WHITE OR GRAYISH-WHITE, CRYSTAL-LIKE PIECES OR LUMPS LUMPS OF GREENISH GLASS; WHITE POWDERS; LIQUIDS CLOUDY OR CLEAR |
| Safety Data | |
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