Functional Roles
Industries Served
Physical Properties
melting_point
1089 u00b0C
boiling_point
BOILING POINT: 100 u00b0C -6H20 /NONAHYDRATE/
density
1.1 to 1.7 at 68 u00b0F (USCG, 1999)
solubility
VERY SOL IN COLD & HOT WATER; SOLUBLE IN DILUTE SODIUM HYDROXIDE; INSOLUBLE IN ALCOHOL, ACIDS /NONAHYDRATE/
ph
PH: ABOUT 12.5; HAS RELATIVELY HIGH BUFFER CAPACITY /0.5% SOLUTION/
GHS / SDS Safety
Danger
Irritant
Health Hazard
Corrosive
- H335: May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]
- H314 (> 99.9%): Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]
- H319 (28%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
- H318 (13.9%): Causes serious eye damage [Danger Serious eye damage/eye irritation]
- H335 (98.6%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]
- H315 (72.6%): Causes skin irritation [Warning Skin corrosion/irritation]
- H302 (24.1%): Harmful if swallowed [Warning Acute toxicity, oral]
- H335 (46.6%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]
- H302: Harmful if swallowed [Warning Acute toxicity, oral]
- H290 (13.9%): May be corrosive to metals [Warning Corrosive to Metals]
- H318: Causes serious eye damage [Danger Serious eye damage/eye irritation]
- H314 (20%): Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]
- H371: May cause damage to organs [Warning Specific target organ toxicity, single exposure]
- H318 (61.5%): Causes serious eye damage [Danger Serious eye damage/eye irritation]
- H314: Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]
- H290 (13.1%): May be corrosive to metals [Warning Corrosive to Metals]
Chemical Identity
| CAS Number | 6834-92-0 |
| IUPAC Name | disodium;dioxido(oxo)silane |
| InChI Key | NTHWMYGWWRZVTN-UHFFFAOYSA-N |
| PubChem CID | 23266 |
| INCI Name | SODIUM METASILICATE |
Synonyms & Trade Names
Full Description
Sodium Metasilicate Anhydrous (CAS 6834-92-0) is an inorganic salt compound that functions primarily as a pH adjustment agent in industrial applications. This water-soluble metasilicate is utilized across agriculture, HI&I cleaning, mining, plastics & polymers, and textile industries for pH control processes. The anhydrous form has a melting point of 1089°C and exhibits high solubility in both cold and hot water systems.