| Identification | |
| Name: | Sodium metasilicate pentahydrate |
| Synonyms: | Disodiumsilicate pentahydrate (Na2SiO3.5H2O);Dorimetakeiso 5aq;Dry Metakeiso 5aq;Metaesu5;Metso granular;Sodium metasilicate (Na2SiO3) pentahydrate;Sodiummetasilicate pentahydrate;Sodium silicate (Na2SiO3), pentahydrate;Sodiumsilicate hydrate (Na2SiO3.5H2O);Silicic acid (H2SiO3),disodium salt, pentahydrate (8CI,9CI); |
| CAS: | 10213-79-3 |
| EINECS: | 229-912-9 |
| Molecular Formula: | H10Na2O8Si |
| Molecular Weight: | 212.15 |
| InChI: | InChI=1/2Na.O3Si.5H2O/c;;1-4(2)3;;;;;/h;;;5*1H2/q2*+1;-2;;;;; |
| Molecular Structure: |  |
| Properties | |
| Transport: | UN 3253 |
| Density: | 2.61 |
| 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 |
| Specification: |
?Silicic acid, disodium salt, pentahydrate (CAS NO.10213-79-3), its Synonyms are Silicic acid (H2SiO3), disodium salt, pentahydrate ; Sodium metasilicate pentahydrate ; Sodium oxosilanediolate hydrate (2:1:5) . |
| Packinggroup: | III |
| 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 |
C:Corrosive
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