SODIUM METASILICATE PENTAHYDRATE CAS#10213-79-3
Versatile Industrial Applications: Can be used in plasma electrolytic oxidation (PEO) coatings, ceramic synthesis, and catalyst production.
Effective Silica Source: Serves as a reliable source of silica for synthesizing silica-zirconia composites and zeolite layers.
Supports Advanced Material Synthesis: Enables the preparation of sintered mullite ceramics and zeolite NaA layers on α-Al₂O₃ supports.
Catalytic and Environmental Utility: Used in the synthesis of photo-Fenton catalysts for degrading pollutants such as Rhodamine B.
Sodium Metasilicate Pentahydrate CAS No. 10213-79-3
Sodium metasilicate pentahydrate has a wide range of applications in materials science and catalysis:
It is used as a silicate electrolyte in plasma electrolytic oxidation (PEO) coatings, providing enhanced surface modification and protection for metals.
It serves in the co-precipitation synthesis of sintered mullite ceramics (3Al₂O₃·2SiO₂), enabling the production of high-quality ceramic materials.
It acts as a reliable source of silica for the preparation of silica-zirconia composites, which are important for chromatographic and other high-performance applications.
It is applied in the synthesis of photo-Fenton catalysts, such as nontronite, for the effective degradation of organic pollutants like Rhodamine B.
Additionally, it is used as a starting material for the formation of zeolite NaA layers on α-Al₂O₃ supports, facilitating the creation of functional zeolite-based materials.
SODIUM METASILICATE PENTAHYDRATE Chemical Properties
| Melting point | 1088°C |
| density | 2.61 |
| refractive index | 1.52 |
| storage temp. | Store at room temperature |
| form | Solid |
| color | White |
| PH | 12,5 (in aqueous solution: 10 g /l , 20 °C) |
| Odor | odourless |
| Water Solubility | Soluble in cold water. |
| Merck | 148,642 |
| CAS DataBase Reference | 10213-79-3(CAS DataBase Reference) |
| EPA Substance Registry System | Silicic acid (H2SiO3), disodium salt, pentahydrate (10213-79-3) |
| Hazard Codes | C |
| Risk Statements | 34-37 |
| Safety Statements | 26-36/37/39-45 |
| RIDADR | UN 3253 8/PG 3 |
| WGK Germany | 1 |
| RTECS | VV9287500 |
| TSCA | Yes |
| HazardClass | 8 |
| PackingGroup | III |
| HS Code | 28391100 |
Product Application of Sodium Metasilicate Pentahydrate CAS No. 10213-79-3
Sodium metasilicate pentahydrate is a versatile chemical used in a wide range of applications. It serves as a fireproofing agent and is commonly incorporated into cleaning products for laundry, dairy equipment, metals, and floors. It is also used in paper deinking, the cleaning of carbonated beverage bottles, and in insecticides, fungicides, and antimicrobial formulations. Additionally, it functions as a chemical intermediate for silica gel catalysts and as an additive in soaps and synthetic detergents. It can also be employed as a base or bleaching aid in tableware and laundry detergent formulations.



