CAS 10213-79-3
Sodium Metasilicate Pentahydrate
CAS 10213-79-3Na2SiO3·5H2O212.14 g/mol
Sodium Metasilicate Pentahydrate is widely used as a powerful builder and emulsifier in detergents and cleaning applications. Known for its effectiveness as a water softener and corrosion inhibitor, it finds major use in automatic dishwashing detergents and industrial cleaning. Its versatility makes it indispensable in industries such as paper, textiles, and construction, where it enhances strength and durability. Sourced predominantly for industrial-grade applications due to its high purity, it meets diverse demands across sectors from mining to water treatment.
Main applicationDetergents and cleaning — builder and emulsifier
Sodium Metasilicate Pentahydrate plays a critical role in enhancing cleaning efficiency and industrial processes by acting as a high-performance builder and corrosion inhibitor. Its ability to improve cleaning formulations, along with its diverse applications, makes it a staple in industries from detergent manufacturing to construction and water treatment.
Also known as
- Silicic acid disodium salt pentahydrate
Trade pricing
Quoted per enquiry
Pricing depends on volume, grade and delivery point. Our desk responds within two working hours.
Available packaging
- Available in 25 kg bags.
Documentation
Batch-specific COA issued with every consignment.
Technical specifications
- CAS number
- 10213-79-3
- Chemical formula
- Na2SiO3·5H2O
- Molecular weight
- 212.14 g/mol
- Grade
- Industrial grade
- Appearance
- White to off-white granules or powder
- Concentration
- ≥99%
Sodium Metasilicate Pentahydrate (Na2SiO3·5H2O) is recognized for its high alkalinity and anti-corrosion properties. In detergent formulations, it serves as a builder, effectively sequestering hardness ions and maintaining alkalinity. Its ability to remove oils and residues without hydrogen embrittlement makes it suitable for metal cleaning and degreasing. When choosing a grade, the industrial-grade offers ≥99% purity, optimizing applications where maximum effectiveness is required. It is essential to specify the desired purity and concentration when ordering to ensure it meets the intended application requirements.
Delivery
Sodium Metasilicate Pentahydrate is dispatched from our Nairobi warehouse across Kenya, and export delivery is arranged to the wider East African market. Lead time depends on quantity and grade and is confirmed with your quotation — see delivery and collection for the towns we reach and how dispatch works.
Applications & uses
- Detergents and cleaning — builder and emulsifier
- Automatic dishwashing detergents — phosphate-free formula
- Metal cleaning & degreasing — residue removal
- Water treatment — corrosion inhibition and pH buffering
- Concrete, cement, construction — admixture for durability
- Textile processing — scouring and bleaching auxiliaries
- Mining/mineral processing — depressant/dispersant
- Paper industry — fiber bonding enhancement
- Ceramics, refractories — deflocculant
- Oil & gas drilling — viscosity modifier
- Adhesives — soluble glass formulation
Industries we supply this to
Why buy this from Sparks
- High purity — ensures maximum efficiency in applications
- Effective builder — maintains cleaning power and extends shelf life
- Corrosion inhibition — protects equipment and surfaces
- Water softening — improves detergent performance
- Versatile use — applicable across multiple industries
- Stable formula — consistent performance over time
Quality assurance
- Batches are checked against the specification values listed above before dispatch.
State what your process, auditor or customs clearance requires when you request a quotation, and it is confirmed with the quote.
Safety, handling & storage
Always consult the full Safety Data Sheet before handling. Personnel must use appropriate PPE and follow local regulations for storage, transport and disposal.
Frequently asked questions
What is the CAS number of Sodium Metasilicate Pentahydrate?
The CAS registry number for Sodium Metasilicate Pentahydrate is 10213-79-3. Its chemical formula is Na2SiO3·5H2O, with a molecular weight of 212.14 g/mol. Quote this number when requesting a quotation or checking documentation, as it identifies the substance unambiguously regardless of the trade name used.
What are the other names for Sodium Metasilicate Pentahydrate?
Sodium Metasilicate Pentahydrate is also referred to as Silicic acid disodium salt pentahydrate. These names describe the same substance, so a specification or enquiry written against any of them can be matched to this product.
What grade of Sodium Metasilicate Pentahydrate is supplied?
Sodium Metasilicate Pentahydrate is supplied as Industrial grade. State the grade your process requires when requesting a quotation — where an alternative grade can be sourced, it is confirmed at quotation stage rather than assumed.
What concentration is Sodium Metasilicate Pentahydrate supplied at?
Sodium Metasilicate Pentahydrate is supplied at a concentration of ≥99%. Concentration and assay are separate figures: the concentration describes the strength of the material as supplied, and the certificate of analysis issued for your consignment carries the measured values for that batch.
What does Sodium Metasilicate Pentahydrate look like?
Sodium Metasilicate Pentahydrate is described as white to off-white granules or powder. Appearance is a useful first check on receipt of goods, though it does not replace the certificate of analysis for confirming that the material meets specification.
What is Sodium Metasilicate Pentahydrate used for?
Common applications include detergents and cleaning — builder and emulsifier, automatic dishwashing detergents — phosphate-free formula, metal cleaning & degreasing — residue removal, water treatment — corrosion inhibition and pH buffering, concrete, cement, construction — admixture for durability and textile processing — scouring and bleaching auxiliaries. The suitability of the product for a particular process depends on the grade and specification required, which is worth confirming against your own process conditions.
Which industries use Sodium Metasilicate Pentahydrate?
Sodium Metasilicate Pentahydrate is supplied to the Water Treatment, Food Processing & Beverage, Agriculture & Agrochemicals, Mining & Minerals, Construction & Admixtures, Pharmaceuticals & Healthcare, Cosmetics & Personal Care, Cleaning & Detergents, Paints, Coatings & Inks, Textile & Leather Tanning, Oil, Gas & Energy and Laboratories & Research sectors. These are the industries this product is listed against in our catalogue; if your application falls outside them, we can advise on suitability before you order.
What packaging is Sodium Metasilicate Pentahydrate available in?
Available in 25 kg bags. Where a different pack size or bulk delivery is required, it is confirmed at quotation stage against availability rather than listed here as standard.
What is the HS code for Sodium Metasilicate Pentahydrate?
Sodium Metasilicate Pentahydrate is recorded against the EC number 229‑912‑9 and the HS customs code 28391100. Quote this on customs and export paperwork; it is confirmed again on the commercial invoice for your specific consignment.
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