What is Sodium Metasilicate CAS 6834-92-0 used for?

It is an alkaline inorganic builder used in powdered detergents, industrial cleaners, metal cleaning, water treatment, and silicate-based process formulations. It provides alkalinity, soil dispersion, and corrosion inhibition in cleaning systems.

What does Sodium Metasilicate do in detergent formulations?

It acts as a builder by raising alkalinity, improving soil removal, dispersing deposits, and helping protect metal surfaces through corrosion inhibition. These properties make it useful in heavy-duty powder and industrial cleaning products.

Is CAS 6834-92-0 the anhydrous form of Sodium Metasilicate?

Yes. CAS 6834-92-0 identifies anhydrous Sodium Metasilicate, which has a higher active Na2O and SiO2 content by weight than the hydrated forms. The pentahydrate is a separate hydrated grade and is often listed under CAS 10213-79-3.

How does Sodium Metasilicate behave in water?

It dissolves readily in water to form a strongly alkaline solution. This alkaline solution is effective for degreasing, buffering, and dispersing soils in cleaning and industrial process applications.

How should Sodium Metasilicate be stored?

Keep it in tightly sealed, moisture-resistant containers in a cool, dry area. The anhydrous product is hygroscopic and can absorb moisture and carbon dioxide from air, which may cause caking or reduce performance.

Sodium Metasilicate CAS 6834-92-0

Sodium Metasilicate is an inorganic alkaline material widely used as a functional builder in detergent and cleaning formulations, as well as in industrial processes requiring buffering, corrosion inhibition, and soil dispersion. It is commonly applied in powder detergents, industrial cleaners, and surface treatment systems where alkalinity and silicate functionality are required. Sodium Carbonate is a related alkaline builder to compare when formulation work requires carbonate alkalinity rather than silicate functionality.

In commercial supply, Sodium Metasilicate is typically provided as a solid material in granular, powder, or crystalline form. It is suitable for bulk handling and formulation use, with standard export packaging and documentation support for industrial buyers.

CAS: 6834-92-0
Synonyms: Disodium Metasilicate; Sodium Silicate (Metasilicate form)
Einecs: 229-912-9
Molecular Formula: Na₂SiO₃
Grade: Industrial Grade
Package: Available in solid form; typically packed in moisture-resistant bags or lined containers suitable for industrial handling and transport.

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Product Description

1 Physicochemical Properties

2 Typical Applications

3 Packaging

4 Storage

Physicochemical Properties

Property	Value
Appearance	White granular, powder, or crystalline solid
Odor	Odorless
Density	Approx. 2.4 g/cm³ (anhydrous basis)
Solubility	Readily soluble in water, forming alkaline solution
pH	Strongly alkaline in aqueous solution
Melting Point	Typically above 1000 °C (anhydrous form)
Hygroscopicity	Absorbs moisture from air

Typical Applications

Builder in powder and industrial detergent formulations
Alkaline agent in industrial and institutional cleaning systems
Corrosion inhibition and metal surface protection in cleaning processes
Water treatment and process chemistry requiring buffering and dispersion
Raw material in silicate-based formulations and processing aids

For related silicate builder pages, compare Sodium Metasilicate Pentahydrate and Sodium Silicate.

Packaging

Sodium Metasilicate is supplied as a solid material and typically packed in moisture-resistant bags or lined containers to protect against humidity and caking. Packaging is designed to maintain product stability during storage and transportation.

Options can be aligned with order volume, including palletized export packaging for bulk handling and distribution.

Storage

Store in a cool, dry, and well-ventilated environment. Keep containers tightly sealed to prevent moisture absorption, as the product is hygroscopic.

Avoid exposure to humidity and maintain packaging integrity during storage and transport.

FAQ - Technical & Supply Chain

Q:
What is Sodium Metasilicate CAS 6834-92-0 used for?

A: It is an alkaline inorganic builder used in powdered detergents, industrial cleaners, metal cleaning, water treatment, and silicate-based process formulations. It provides alkalinity, soil dispersion, and corrosion inhibition in cleaning systems.
Q:
What does Sodium Metasilicate do in detergent formulations?

A: It acts as a builder by raising alkalinity, improving soil removal, dispersing deposits, and helping protect metal surfaces through corrosion inhibition. These properties make it useful in heavy-duty powder and industrial cleaning products.
Q:
Is CAS 6834-92-0 the anhydrous form of Sodium Metasilicate?

A: Yes. CAS 6834-92-0 identifies anhydrous Sodium Metasilicate, which has a higher active Na2O and SiO2 content by weight than the hydrated forms. The pentahydrate is a separate hydrated grade and is often listed under CAS 10213-79-3.
Q:
How does Sodium Metasilicate behave in water?

A: It dissolves readily in water to form a strongly alkaline solution. This alkaline solution is effective for degreasing, buffering, and dispersing soils in cleaning and industrial process applications.
Q:
How should Sodium Metasilicate be stored?

A: Keep it in tightly sealed, moisture-resistant containers in a cool, dry area. The anhydrous product is hygroscopic and can absorb moisture and carbon dioxide from air, which may cause caking or reduce performance.

Ordering & Documentation

Key information for document requests, quotations, and supply planning.

Documents

COA, TDS, SDS/MSDS and packing details are available on request.

Quotation

Send the CAS number, grade, quantity, packing preference and destination.

Sample & Supply

Support is available for samples, trial orders, bulk and repeat supply.

Storage & Shipping

Product-specific conditions are confirmed before order.

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